CATDOLL : CATDOLL: What kind of fish is this?

1. What kind of fish is this?

Lethrinidae Lethrinus

The picture below shows the flat naked cheeked fish Lethrinus lentjan, commonly known as black hat dragon, rotten slow dragon

The fish body is light brown, lighter on the ventral side, and brown on the head. The cheeks are scaleless, and the caudal fin is bifurcated, with the upper and lower lobes pointed and red. There is a white spot below the starting point of the soft rays of the dorsal fin, and its distinctive feature is the red spots on the posterior edge of the gill cover and the base of the pelvic fin. There are 47 to 48 scales on the lateral line, 10 hard spines and 9 soft rays on the dorsal fin; 3 hard spines and 8 soft rays on the anal fin. The body length can reach 52 cm.

It lives in lagoons or seaward reef slopes. It is carnivorous and feeds on fish, crustaceans and mollusks. It is a delicious edible fish, suitable for cooking miso soup or deep-frying.

Distributed in the Indian and Western Pacific region, including the Red Sea, East Africa, Madagascar, Mauritius, Reunion, Maldives, Seychelles, Persian Gulf, Sri Lanka, India, Andaman Sea, Thailand, Indonesia, Malaysia, Vietnam, Japan, Taiwan, coastal areas of China, Philippines, New Guinea, Australia, Mariana Islands, Nauru, Palau, Solomon Islands, Marshall Islands, Micronesia, Fiji Islands, Hawaiian Islands, Samoa Islands, French Polynesia, New Caledonia, Tonga, Kiribati, Tuvalu, Vanuatu and other waters.

Grass emperor, or sweetlip emperor. A type of emperor fish, the best variety is the red one, which Hong Kong people call Haibawang. This kind of fish is of average quality, with hard meat. The whole fish can be roasted or cooked, but it will become hard if fried or deep-fried.

Did you fish it yourself?

Hey, it’s not the crucian carp in the sea. The crucian carp in the sea is bonny bream.

You can also think of this fish as sea bream. Since it is not very common in China, it is often treated as such.

Chef Liangbi teaches you how to fillet fish fillets in a simple and easy way

This is the first time I have seen such a big fish.

Snapper????

2. What medicine is used for the red belly of gilthead sea bream seedlings?

The wonderful content about common diseases and preventive drugs for sea bream is waiting for you to read. It includes precautions for sea bream farming and common diseases and preventive drugs for sea bream, all of which are carefully prepared for you!

Good articles need to be savored slowly, but we have put in 100% effort, and the wonderful content of the common diseases and preventive drugs for sea bream is waiting for you to read. It contains sea bream farming precautions and common diseases and preventive drugs for sea bream, all of which are carefully prepared for you!



[Common diseases in sea bream farming] Sea bream is high and flat on the sides, more than 50 cm long, silver-red with light blue spots, green-black behind the tail fin, large head and small mouth, upper and lower jaw teeth are conical in front and molar-shaped in the back, body is covered with ctenoid scales, dorsal and anal fins have hard spines. Common diseases in sea bream farming are introduced below for your reference.

Common diseases in sea bream farming

1. White spot disease:

Strictly speaking, white spot disease is not a disease, but a symptom. In the season of cold and hot exchange, if the temperature in the tank suddenly differs too much, white spot disease is easy to occur.

There are many ways to treat it. The most common method used by Tailu is to change the water and raise the temperature to 30 degrees Celsius. In theory, on the third day, it should be possible to see whether the disease has been controlled and the white spots are no longer spreading. If the white spots continue to spread, Tailu will use Sera's white spot treatment medicine. Follow the instructions to apply the medicine and control the temperature at 30 degrees Celsius. At most, the white spots should be cured after two applications. Finally, change 1/3 to 1/4 of the water and adjust the temperature back to 24-26 degrees Celsius.

What medicine should be used for the red belly of gilthead bream seedlings? Answer: The red belly of gilthead bream seedlings can be cured by using Shuangfeiren medicine

3. What are the benefits of eating fish regularly at home?

Fish is not only nutritious, but also delicious. The ancients said, "The taste of fish is the taste of all flavors. If you eat fish, all other flavors will taste bland." When our ancestors created Chinese characters, they put the word "fresh" in the "fish" section, and eliminated it instead of the "meat" section, and regarded fish as the best of "freshness". Therefore, fish has always been a favorite food of people. Fish is not only delicious, but also has many health benefits for the human body.

1. Eating fish can fight depression

Scientists point out that 5% of the American population suffers from severe depression, while only 0.1% of the Japanese suffer from severe depression, which is 1/50 of the American population. Studies have shown that the above differences are related to the amount of fish consumed in the two countries' different eating habits. Studies have found that there is a special fatty acid in fish that is related to the "happy hormone" in the human brain. It has the effects of relieving mental tension and balancing emotions. People who do not eat fish or eat less fish tend to have lower levels of "happy hormones". Americans do not eat fish often, so many people suffer from depression.

2. Eating fish can prevent asthma

As the saying goes, "Fish produces fire, meat produces phlegm." Therefore, for a long time, many people have regarded eating fish as an important cause of asthma, so they have always avoided eating fish. However, recent studies by relevant experts have found that eating fresh fish regularly is not only harmless to asthma patients, but also beneficial to preventing the onset of asthma. Why can eating fresh fish reduce the onset of asthma? Because the unsaturated fatty acids contained in fresh fish can prevent or reduce the production of inflammatory mediators in the human body, and the onset of asthma is closely related to the release of inflammatory mediators. In addition, unsaturated fatty acids also have a certain effect of reducing tracheal inflammation, thereby helping to prevent the occurrence and recurrence of asthma or reduce the severity of asthma symptoms.

3. Eating fish reduces dementia

Canadian scientists have found through research on patients with Alzheimer's disease and healthy elderly people that the content of DHA fatty acids in the blood of healthy elderly people is much higher than that of elderly people with dementia, and the content of DHA in the blood of those with dementia symptoms is 30% to 40% less than that of healthy elderly people on average. Scientists believe that DHA is a nutrient necessary for brain cell activity and vitality. It helps improve nerve information transmission, enhance thinking and memory. Therefore, eating more fish can reduce the incidence of dementia in the elderly.

4. Eating fish can prevent stroke

Scientists have found through comparison that, as an economically developed country, the number of people suffering from stroke in Japan is much lower than that in some countries in Europe and America. The reason is that Japanese people eat more fish. Eating more fish has a protective effect on cardiovascular and cerebrovascular diseases. Studies have shown that the higher the content of protein and sulfur-containing amino acids in the diet, the lower the incidence of hypertension. Fish protein is rich in protein amino acids and taurine, both of which are sulfur-containing amino acids. It can affect the regulation mechanism of blood pressure, increase the amount of sodium excreted in urine, thereby inhibiting the effect of sodium salt on blood pressure and reducing the incidence of hypertension. Experts suggest that one of the effective ways for middle-aged and elderly people to prevent cardiovascular and cerebrovascular diseases is to take three or four grams of fish oil every day.

5. Eating fish can prevent aging

In German history, there was a famous chancellor named Bismarck. He had been overeating and smoking for many years. When he was 68 years old, his body was already weak, his face was full of wrinkles, his eyes were cloudy and dull, as if death was waving to him. But later he listened to the doctor's advice and ate herring every day. Soon, a miracle happened: his skin was ruddy, his eyes were bright, and he was full of energy. He lived healthily until he was 83 years old.

Crucian carp has the functions of invigorating qi and strengthening spleen, promoting diuresis and reducing swelling, clearing away heat and detoxifying, and promoting the secretion of milk. Patients with ascites can benefit from taking soup made from fresh crucian carp and red beans. Fresh crucian carp and pig's trotters can be stewed together and eaten with the soup to treat insufficient milk in postpartum women. Crucian carp oil is beneficial to cardiovascular function, and can also reduce blood viscosity and promote blood circulation.

Carp has the functions of strengthening the spleen and appetite, promoting diuresis and reducing swelling, relieving cough and asthma, calming the fetus and promoting lactation, clearing away heat and detoxifying. Carp, winter melon, and scallion are boiled in soup to treat edema caused by nephritis. Large carp is stewed after leaving the scales and removing the intestines, and then divided into portions to treat jaundice. Live carp and pig's trotters are boiled in soup to treat low milk production in pregnant women. Carp and a little Sichuan Fritillaria powder are boiled in soup to treat cough and asthma.

Silver carp has the functions of warming the middle, replenishing qi, warming the stomach, and moisturizing the skin. It is a warming, qi-replenishing and health-preserving food.

Black carp has the functions of nourishing qi and stomach, removing dampness and promoting diuresis, dispelling wind and relieving restlessness. The trace elements such as zinc and selenium it contains are helpful in fighting cancer.

Snakehead fish has the functions of tonifying spleen and promoting diuresis, removing blood stasis and promoting new blood, clearing away heat and dispelling wind, and tonifying liver and kidney. Cooking snakehead fish with ginger and red dates has an auxiliary effect on the treatment of tuberculosis. Stewing snakehead fish with brown sugar can cure nephritis. Eating steamed snakehead fish can promote lactation and replenish blood for pregnant women.

Cuttlefish has the functions of nourishing liver and kidney, replenishing qi and blood, clearing stomach and removing heat, etc. It is a health food for women, which has the functions of nourishing blood, improving eyesight, regulating menstruation, stabilizing pregnancy, facilitating delivery, stopping bleeding, and promoting lactation, etc.

Grass carp has the functions of warming the stomach, calming the liver and removing wind. It is a warming and nourishing food.

Hairtail fish has the functions of warming the stomach, replenishing deficiency, moisturizing the skin, dispelling wind, killing insects, and replenishing the five internal organs. It can be used as an auxiliary treatment for persistent hepatitis and chronic hepatitis. Hepatitis patients can steam fresh hairtail fish and eat the upper layer of oil. Long-term consumption can improve symptoms.

Eel has the functions of nourishing qi and blood, softening tendons and strengthening bones.

Yellow eel, which enters the liver, spleen and kidney meridians, has the functions of replenishing deficiency, removing rheumatism, strengthening tendons and bones, and also has a certain regulating effect on blood sugar. People with both qi and blood deficiency can use yellow eel shreds and astragalus (wrapped in gauze) with water and boiled and seasoned. Children with malnutrition, thin body and poor appetite can use a yellow eel, cut into sections, add a little chicken gizzard and boiled. For internal hemorrhoid bleeding and uterine prolapse, boiled yellow eel can be eaten, and long-term use is effective.

Loach has the functions of tonifying qi, removing dampness, quenching thirst, sobering up, removing toxins and removing hemorrhoids, reducing swelling and protecting the liver. Boiling loach and garlic over high heat can cure edema caused by malnutrition. Frying loach until browned and boiling it in water can cure night sweats in children. Stewing loach with tofu can cure damp-heat jaundice. Boiling loach and shrimp roe together can cure impotence.

Seabass, freshwater fish. It is said in ancient times that "people who travel on the river love the beauty of seabass", which shows that the meat of seabass is delicious. Seabass can nourish the five internal organs, benefit the bones and muscles, harmonize the stomach and intestines, stabilize the fetus, and treat water vapor. It is good for people to eat it. It is especially good for pickled fish, and it is very delicious when dried. The gills and meat of seabass can be used as medicine. Its gills are sweet and flat in nature, and have the effect of relieving cough and reducing phlegm, and can be used to treat whooping cough in children. Its meat is sweet and warm in nature, and has the effect of strengthening the spleen and replenishing qi. It is often used to treat chronic stomachache, spleen deficiency diarrhea, malnutrition in children, indigestion, emaciation and other symptoms; if eaten after surgery, it can also promote wound healing. Carp, freshwater fish. Carp has high nutritional value, especially it contains extremely rich protein, which is easily absorbed by the human body, with an utilization rate of up to 98%, and can provide essential amino acids for the human body. "Food Therapy Materia Medica" says that red beans and carp are cooked and eaten to treat athlete's foot and abdominal edema. When the Compendium of Materia Medica introduces the medicinal diet of adzuki beans and various meat and poultry to promote diuresis and reduce swelling, carp is also listed first. Adzuki beans stewed with carp is most suitable for edema caused by malnutrition; it can also be used as an auxiliary treatment food for edema caused by kidney disease; women with edema during pregnancy can eat this recipe to nourish and reduce swelling; it is also suitable for those with insufficient milk after childbirth, as it has the effect of nourishing and promoting lactation.

Catfish, catfish, freshwater fish Catfish is not only rich in nutrients like other fish, but also has tender and delicious meat, is easy to digest, has few bones, and is appetizing, especially suitable for the elderly and children. There are more than twenty ways to cook catfish, among which boiled catfish, spicy catfish, garlic-roasted catfish, and nourishing catfish head are very popular. Among them, boiled catfish is not very spicy, but the meat is delicate and delicious. The spicy garlic-roasted catfish is spicy and tempting. If you want to nourish yourself, you can have a nourishing hot pot, which has American ginseng, adenophora, codonopsis, yam, coix seed, jujube, wolfberry and other seasonings, which are both nourishing and delicious. In addition, the peppers here are taken from the small lantern peppers in Guizhou. If they are soaked with rock sugar, they will be very sweet and can remove the heat of the peppers. Therefore, even ladies who are afraid of acne can taste it boldly.

Crucian carp, a freshwater fish similar to carp, is a common delicacy in the diet and has high nutritional value. Because crucian carp contains animal protein and unsaturated fatty acids, eating crucian carp regularly can not only keep fit, but also reduce obesity, help lower blood pressure and blood lipids, and prolong life. Traditional Chinese medicine believes that crucian carp can replenish deficiency, warm the middle and lower the qi, promote diuresis and reduce swelling, and can treat gastrointestinal bleeding and vomiting and nausea. External use also has the effect of detoxification and anti-inflammatory. It is especially unique in treating postpartum milk deficiency. Eating crucian carp can stimulate the appetite, strengthen the spleen, regulate the production of body fluids, which not only supplements the nutrient protein that produces floating juice, but also the spleen can make milk secretion. Therefore, eating crucian carp can increase milk secretion for parturients with little milk and poor milk secretion.

Grass carp, a freshwater fish. Grass carp meat is sweet, warm, non-toxic, and has the effect of warming the stomach and harmonizing the middle. Guangdong people use it to steam with fried dough sticks, eggs, and pepper powder, which can improve eyesight. Its gallbladder is bitter, cold, and toxic. Animal experiments have shown that grass carp gall has a significant antihypertensive effect, expectorant and mild antitussive effect.

Pike, pike freshwater fish. Pike is a freshwater fish widely distributed in the northern hemisphere's frigid and temperate zones. Its mouth is large and flat like a duck's bill, with a protruding lower jaw. It is the most violent carnivorous fish among freshwater fish. In addition to attacking other fish, it will also attack frogs, mice, or wild ducks. It is said that it can eat food equivalent to its own body weight in one day. Because of its long lifespan, giant individuals can occasionally be found. Because of its excellent meat taste, it is a good target for fishing

Red snapper, a saltwater fish. The meat of snappers is delicious and is a very popular edible fish. There are many cases where fish such as golden eye snapper and surgeonfish are named snappers but are not actually snappers. The snappers eat shellfish, shrimps, and seabed animals in the deeper parts of the seabed near the coast. There are small blue dots scattered in the water that looks like dark gray, but the body color is actually close to red. They come to shallow places to lay eggs at about 4 to 6 months old. Before that, the snappers in early spring are called parrot snappers, which are the best-tasting and most expensive fish.

Salmon, king salmon, salmon, sea/freshwater fish with golden red flesh, tender, often used in sushi, cooking, etc. Fresh ones can be eaten raw. The roe is a top-quality delicacy. The main habitat of salmon is the northern part of the Pacific and Atlantic Oceans. It is a migratory fish. After migrating in the vast ocean, it returns to the river where it was born to lay eggs and then spends its entire life. This is an incredible habit. Salmon is a fish famous for its delicious taste. There are many of its kind, including deep-sea fish such as pike.

Sturgeon, freshwater/marine fish Sturgeon is the largest, longest-lived and oldest fish in the world. It has a history of more than 200 million years and is called the "living fossil in the water". There are 2 families, 6 genera and 26 species of sturgeon in the world. Sturgeon is a low-fat, high-protein meat. It contains 3-5 times more Omega-3 unsaturated fatty acids and hematopoietic vitamins - folic acid (Folicace) than other fish. The chondroitin sulfate contained in the cartilage of the sturgeon head and spine is better than shark cartilage powder in anti-cancer and immune enhancement. Its meat has no intramuscular spines and has a high edible rate. It can be eaten as sashimi, hot pot, smoked, canned, etc. It is a best-selling high-end product in the international market. The meat of artificially cultivated live sturgeon is fresher, tenderer, smoother and more refreshing than salmon when eaten raw, and better than lobster. The whole body of sturgeon is cartilage. Its cartilage, fish skin, fish fins, fish liver, fish intestines and fish belly can be made into dozens of famous dishes with different styles. Sturgeon cartilage has anti-cancer and calcium supplement effects, and sturgeon bones can be boiled into delicious sturgeon bone soup. The snout and nasal cavity of sturgeons are rich in collagen. Sturgeon eggs can be processed into caviar, which is a popular and in-demand commodity in the international market. Because its eggs are gray-brown, they are commonly known as "black gold" and "black pearls". The price of caviar makes the sturgeon industry one of the most profitable industries in the world. Sturgeon skin is tough, durable and beautiful, and can be made into high-grade leather. In addition, sturgeon gills have the special effect of clearing heat and detoxifying; sturgeon oil has a special effect in treating burns. In short, sturgeons can be said to be full of treasures, edible, medicinal, and can also be used as health products.

Analysis of the nutritional value of salmon (salmon, salmon)

Salmon is also called salmon. Its scientific name is salmon. "Salmon" is the transliteration of the English word "salmon". It is one of the world's precious fish. Salmon has small scales and few bones. Its flesh is orange-red and tender and delicious. It can be eaten raw or cooked. It is a fish that is deeply loved by people. At the same time, the cod liver oil made from it is a nutritious product.

Salmon is rich in unsaturated fatty acids, which can effectively reduce blood lipids and cholesterol, and prevent cardiovascular diseases. The omega-3 fatty acids contained in salmon are essential substances for the brain, retina and nervous system, and have the effects of enhancing brain function, preventing and treating Alzheimer's disease and preventing vision loss. The content of this substance is even higher in cod liver oil. Salmon can effectively prevent the occurrence and development of chronic diseases such as diabetes, has high nutritional value, and enjoys the reputation of "water treasure". Cod liver oil is also rich in vitamin D, which can promote the body's absorption and utilization of calcium and help growth and development.

≮Applicable people≯

It is suitable for people of all ages, especially for patients with cardiovascular diseases, mental workers and students taking exams.

≮Applicable amount≯

60~80 grams each time. About 30 grams each time when eating raw.

≮Special Tips≯

Don't overcook salmon, just cook it until it's 80% done. This will preserve the salmon's freshness and remove the fishy smell that people don't like.

Analysis of the nutritional value of sea bass (croaker, sea bass, sea bass, four-rib fish)

Also known as flower perch, Zhaihua, perch board, four-rib fish, etc., commonly known as perch shark, and is one of the "four famous fishes" together with Yangtze River shad and Taihu whitebait. Perch meat is white, tender, fragrant, and has no fishy smell. The meat is in the shape of garlic cloves and is best steamed, braised or stewed. Especially in late autumn and early winter, mature perch is particularly plump and the nutrients accumulated in the fish body are the richest, so it is the best season to eat perch.

≮Efficacy≯

Sea bass can nourish the liver and kidney, benefit the spleen and stomach, and relieve phlegm and cough. It is very good for people with liver and kidney deficiency. Sea bass can also treat fetal movement disorder and low milk production. Eating sea bass is a nutritious food that can nourish the body without causing overnutrition and obesity for expectant mothers and pregnant women. It is a good product for fitness, blood, spleen and qi, and health. In addition, there is a lot of copper in sea bass blood. Copper can maintain the normal function of the nervous system and participate in the function of key enzymes in the metabolism of several substances. People who are deficient in copper can eat sea bass to supplement it.

≮Applicable people≯

Suitable for everyone.

≮Applicable amount≯

100 grams each time.

≮Special Tips≯

Late autumn and early winter are the best seasons to eat sea bass, with Songjiang sea bass being the most famous.

Analysis of the nutritional value of catfish (silver carp, blenny, catfish, and fry)

Catfish, also known as silver carp, slimy fish, catfish, and fry fish. The distinctive features of this fish are that it has no scales, a lot of mucus on the body surface, a flat head and a wide mouth, and four whiskers on the upper and lower jaws. The best season for eating catfish is between mid-spring and mid-summer. Catfish is not only rich in nutrients like other fish, but also has tender meat, rich flavor, few bones, appetizing, and easy to digest, especially suitable for the elderly and children.

≮Efficacy≯

Catfish contains more protein and fat, and has a good therapeutic effect on people with weak constitution and malnutrition. Catfish is a good product for lactation, and has the effects of nourishing yin and blood, replenishing qi, appetizing and diuresis. It is a must-have food for women's postpartum dietary therapy.

≮Applicable people≯

It is suitable for general consumption, especially for the elderly, children, women after childbirth and people with poor digestive function.

≮Applicable amount≯

150~200 grams each time.

≮Special Tips≯

Catfish is good for both medicine and food, and stewing is the best. Catfish has a lot of mucus on its body surface. After slaughtering, blanch it in boiling water and then wash it with clean water to remove the mucus. Eating catfish with beef and mutton fat, beef liver, venison, or with the Chinese medicine Nepeta tenuifolia may be harmful to health. Catfish is also a hairy food. People with chronic diseases and sores should be careful when eating it, and it is best not to eat it.

There are many kinds of fish, the main edible freshwater fish include carp, grass carp, crucian carp, mandarin fish, etc., and the marine fish include yellow croaker, hairtail, flat fish, etc. They all have the characteristics of tender and delicious meat and rich nutrition, and are a good source of some vitamins and inorganic salts.

≮Efficacy≯

Fish meat contains folic acid, vitamin B2, vitamin B12 and other vitamins, which have the effects of nourishing the stomach, promoting diuresis and reducing swelling, promoting lactation, clearing away heat and detoxifying, and stopping cough and relieving gas. It is effective for various edema, swelling, abdominal distension, oliguria, jaundice, and milk blockage.

Eating fish has a good therapeutic effect on fetal movement disorder and pregnancy edema in pregnant women.

Fish meat is rich in magnesium, which has a good protective effect on the cardiovascular system and helps prevent cardiovascular diseases such as hypertension and myocardial infarction.

Fish meat is rich in vitamin A, iron, calcium, phosphorus, etc. Eating fish regularly can nourish the liver and blood, moisturize the skin, nourish hair and keep fit.

≮Applicable people≯

It is edible for most people.

≮Applicable amount≯

100 grams each time.

≮Special Tips≯

Less salt should be used when used as a dietary therapy to promote lactation.

You don't need to add MSG when cooking fish, because they have a good umami taste.

≮Healthy traffic lights≯

Fish is an allergenic food and should not be eaten by people with chronic diseases.

≮Main nutrients≯

Vitamins

(mg) A (μg) B1 B2 B6 B12 (μg) CD (μg) E

25 0.03 0.09 0.13 10 - 14 1.27

Biotin (μg) K (μg) P (μg) Carotene Folic acid (μg) Pantothenic acid Niacin Mineral elements

(mg) Calcium

- - - - 5 1.48 2.7 50

Iron, phosphorus, potassium, sodium, copper, magnesium, zinc (micrograms), selenium (micrograms)

1 204 334 53.7 0.06 33 2.08 15.38

Nutritional value of cold water fish

1. Nutrition of general freshwater fish

The protein content of freshwater fish is generally 17.9-19.5%, which is twice that of barley, wheat, sorghum and pork, even more than eggs and milk, and second only to beef. It is a high-quality protein, which not only has a high absorption rate in the human body, but also promotes the excretion of excess salt. Fish is also rich in vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin PP (also known as niacin or nicotinic acid), vitamin D, etc. and a certain amount of minerals such as calcium, phosphorus, and iron. Of course, there are also large differences in the nutritional content of fish due to different types.

2. Nutrition of cold water fish

1. Nutritional characteristics of salmon and trout compared with general freshwater fish

First, the nutritional value is higher than that of ordinary freshwater fish. Taking rainbow trout and popular carp as examples, the main nutrients protein and fat, rainbow trout are 13.35% and 41.76% higher than carp respectively, and the calories are 42 kcal higher. In particular, the content of vitamins A, D, B12 and B6 is very high. The content of 11 kinds of amino acids is also much higher than that of carp. Second, the content of DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) is much higher than that of ordinary freshwater fish, while the cholesterol content is almost zero. DHA is an indispensable fatty acid for humans, and it is a highly unsaturated fatty acid. Among the common freshwater fish currently raised in my country, taking carp as an example, 100 grams of carp meat contains 288 mg of DHA, 159 mg of EPA, and a total amount of fatty acids of 6.34 grams, while the same weight of rainbow trout contains 983 mg of DHA, 247 mg of EPA, and a total amount of fatty acids of 4.97 grams. The latter is 3.41 times, 1.55 times and 1.28 times higher than the former respectively. Third, the meat is tender, delicious, no fishy smell, good taste, especially without small bone spurs (i.e., intramuscular spurs), which is more suitable for the elderly and children.

2. Research report on the therapeutic effects of cold-water fish

Diet therapy - a method of using food in people's daily life to treat diseases. There are many reports on the research data on the therapeutic effects of salmon and trout. Cold-water fish are rich in DHA and EPA (eicosene acid, a fatty acid very similar to DHA in nature). Studies have shown that EPA can accelerate the healing of patients' wounds and is of great help to the health of pregnant women, the elderly, young children and postoperative patients. DHA has many unique effects. Professor Croft of the Institute of Brain Nutrition Chemistry in the UK has confirmed that about 10% of the fat in the human brain is DHA. DHA has the effect of enhancing brain function. It can lower cholesterol, blood lipids and blood sugar, thereby improving the human cardiovascular and cerebrovascular system, preventing thrombosis, and improving the body's immunity. Alexander Richardson, a neuroscientist at the University of Oxford in the UK, believes that the human brain needs DHA to function normally. Lack of this substance may lead to depression, autism, dyslexia and lack of concentration. DHA in fish can help improve depression. Eating more fish can help relieve depression and dyslexia. Dr. Donald J. Menton, a Canadian biochemist and nutrition expert, said that Canadians have a high incidence of heart disease. The various capsule-shaped health products they developed and produced by extracting DHA and EPA from salmon and trout are very popular. Many patients have changed from past drug therapy to current food therapy, which has controlled or improved their condition. Many people have effectively prevented the occurrence of cardiovascular diseases by eating these health products. He believes that people can prevent the occurrence of thrombosis by eating salmon and trout twice a week. Recently, Dutch scientists conducted a study on 1,613 volunteers aged between 45 and 70 who like to eat fish. The results showed that those who like to eat fish for a long time have a 19% and 28% higher brain function and operation speed than those who do not eat such fish; those who have long eaten fish rich in DHA and EPA still show very sensitive and flexible brain function even at a relatively old age. On the contrary, those subjects who often adopt a high-cholesterol diet have a 27% worse memory ability and a 26% lower brain flexibility than the former. Long-term consumption of high-cholesterol foods will not only damage the function of the heart, but also form a substance called B-amyloid protein in the human brain. This protein will slowly form amyloid protein blocks, affecting the normal functioning of the brain and inducing Alzheimer's disease. In some highly developed countries, such as the United States, the number of people suffering from Alzheimer's disease is as high as 4.5 million. This shows that people's dietary structure has a certain impact on maintaining the good working condition of the brain, and eating salmon and trout has a protective effect on the brain. A recent study by Italian experts showed that eating health products containing salmon and trout can significantly reduce the risk of sudden death in heart patients. Eating 1 gram of DHA extracted from salmon and trout fish oil every day will reduce the risk of sudden death during a heart attack. Experts believe that fatty acids help reduce arrhythmia or abnormal heartbeats, which is the main cause of death in heart patients. They believe that eating more fish, especially salmon and trout, is good for human health and should be eaten at least once or twice a week. At the same time, people are advised to eat more low-fat foods. The famous Japanese nutritionist Naoko Nono also believes that DHA and EPA as well as glutamic acid, arginine and phospholipids play an important role in activating the human immune system and protecting the intestinal mucosa. According to another survey, North American Eskimo women still eat fish three times a day like their ancestors, so they have never been found to have breast cancer.

From the above examples, we can see that salmon and trout not only have high nutritional value, but also have the following unique therapeutic effects due to their rich content of DHA and EPA: ① reduce the cholesterol concentration in the blood and prevent cardiovascular diseases caused by arteriosclerosis; ② make the blood less likely to coagulate; ③ reduce inflammation; ④ prevent the spread of cancer; ⑤ improve brain function, enhance memory, and prevent brain aging. It is precisely because of these reasons that in the more than 100 years of artificial breeding, the status of salmon and trout as an internationally recognized high-quality and precious fish has not been affected by the continuous expansion of breeding scale and the increase in production. On the contrary, as more and more people gradually deepen their understanding of the nutritional value and therapeutic effects of salmon and trout, its market prospects are getting better and better, and it has maintained a high price. In addition, many studies have shown that various processing methods will not destroy the DHA and EPA of fish. Therefore, it can be eaten raw, steamed, boiled, fried, grilled, etc. Based on this feature, some salmon and trout fishery technology development institutes have developed a series of products using salmon and trout as raw materials: fish heads, fish roe sauce, fish skin, fish dumplings, fish balls and salmon and trout bean products, which are very popular among consumers. Among them, salmon and trout bean products are the most popular. Because tofu is a good product that can be used as both food and medicine. It not only contains high calcium (140-160 mg of calcium per 100g of tofu), but also contains 8 essential amino acids for the human body and unsaturated fatty acids and lecithin that are lacking in animal foods. It has many functions such as growing skin, improving appearance, replenishing essence, increasing strength, and replenishing physical weakness. However, its methionine content is relatively low.

The content of methionine in salmon and trout is very rich, while the content of phenylalanine in fish is relatively low, while the content in tofu is relatively high. Therefore, the two are scientifically mixed and processed into salmon and trout bean products, so that they complement each other and greatly improve the nutritional value. Looking at the breeding conditions of cold-water fish can well illustrate this point. The growth environment required by this fish is very harsh, and it cannot be bred in any polluted mountain spring water. Therefore, it can fully meet the requirements of healthy food raw food. At present, Atlantic salmon, silver salmon, white char, and red char are all precious salmon and trout.

Nutritional value of croaker

The sturgeon is also known as Minzi, rice fish, etc. It has a long and flat body, generally 45 to 55 cm long, with fine scales, a rough surface, a blue-gray-brown body, a grayish-white abdomen, and bright red eyes.

The croaker is one of the economic fish in the ocean. The nutrients in 100 grams are as follows: calories (kcal) 89, thiamine (mg) .01; calcium (mg) 21; protein (g) 20.2; riboflavin (mg) .05; magnesium (mg) 18; fat (g) .9; niacin (mg) 3; iron (mg) 1.1; carbohydrates (g); vitamin C (mg); manganese (mg) .07; dietary fiber (g); vitamin E (mg); zinc (mg) .81;...

The meat of the cod is tender, garlic-shaped and white in color. It is suitable for braising, dry-braising, sweet and sour, steaming, and deep-frying. Its maw can be processed into fish maw, called cod maw, which can treat stomach problems and has a good therapeutic effect.

Fish is rich in nutritional value

The protein content of fish is about 15-24%, so fish is a good source of protein, and the absorption rate of these proteins is very high, about 87-98% will be absorbed by the human body. The fat content of fish is much lower than that of livestock meat, and fish contains very special ω-3 fatty acids, such as EPA (Ecosapenoic acid, eicosapentaenoic acid) and DHA (Decosahexanoid acid, docosahexaenoic acid).

In addition to this, fish oil is also rich in vitamins A and D, especially in fish liver. Fish also contains water-soluble vitamins B6, B12, niacin and biotin. Fish also contains minerals. The most noteworthy ones are anchovies or sardines, which are a good source of calcium if eaten with bones. Marine fish are rich in iodine. Other minerals such as phosphorus, copper, magnesium, potassium, iron, etc. can also be taken in when eating fish.

DHA is a key element in boosting brain power

Why do we often hear that eating fish can make you smarter? There is actually a scientific basis for this. The DHA contained in fish is mainly found in the brain, retina and nerves in the human body. DHA can maintain the normal function of the retina. Infants especially need this nutrient to promote healthy vision development. DHA is also of great benefit to the development of the human brain and intelligence, and is an indispensable nutrient for the growth of the nervous system.

Most seafood contains DHA, but deep-sea fish such as salmon, mackerel, sardines, saury, and yellowtail fish contain the most DHA, especially in the fat tissue near the fish's eyeballs. Although cod, milkfish, and mullet have high oil content, their ω-3 fatty acid content is not very high; tuna, yellow croaker, sea bass, and hairtail fish have even lower ω-3 fatty acid content.

DHA is very important for the rapid brain development of fetuses and infants. Infants cannot produce enough DHA for brain cell and nerve development. They must obtain DHA from breast milk or infant formula. Breast milk is rich in DHA. Babies fed with breast milk have better visual development and intellectual cognitive development than babies fed with infant formula. The longer the baby is breastfed, the higher the IQ of the baby will be, and the better the academic performance will be when they grow up. Therefore, breast milk is the best food for babies.

However, if the mother does not supplement enough DHA-rich foods during pregnancy or breastfeeding, the body will not contain enough DHA, and the DHA concentration in the infant may be insufficient. Therefore, pregnant and breastfeeding women should consume more deep-sea fish to increase the amount of DHA in the body during pregnancy, or pass it to the baby through breastfeeding. If it is inconvenient or you don’t like to eat fish, you may have to consider taking capsule-shaped DHA supplements. When the mother is unable to or stops breastfeeding, it is advisable to add DHA to the infant’s diet, such as choosing formula milk powder with added DHA, or using more fish to make supplementary food. However, some infant formula milk powders do not contain DHA, so you should pay attention to the label when purchasing.

People with Alzheimer's disease have an average of 30 to 40 percent less DHA in their blood than normal people. People who eat fish regularly are less likely to have their brains deteriorate, and their symptoms of Alzheimer's disease can even be improved. Even for healthy people, a lack of DHA can cause reduced memory and learning abilities.

Medical evidence shows that eating fish regularly has many benefits

Fish is rich in protein, which can help infants, children and teenagers grow and develop, and can also help recovery and healing when they are sick or have wounds. In addition, fish protein has shorter muscle fiber structure and less connective tissue, so fish tastes more delicate and tender than other animal meats, and is easier to digest, making it very suitable for infants and the elderly. Fish contains less fat than animal meat, so the calories are lower than animal meat.

Medical research has found that the Eskimos have a very low rate of cardiovascular disease. It turns out that this is because they have a lot of marine fish rich in EPA and DHA in their diet. A survey in Japan also found that residents of coastal fishing villages have a lower rate of cardiovascular disease than farmers inland. The two special ω-3 fatty acids EPA and DHA in fish can lower blood lipids, especially triglycerides and low-density lipoprotein cholesterol (bad cholesterol), and make platelets less likely to aggregate, thereby preventing cardiovascular diseases and strokes caused by thrombosis, and protecting the heart.

A study in Finland found that people who eat fish less than once a week have a higher rate of mild depression than those who eat fish regularly, because EPA and DHA in fish can eliminate anxiety and prevent schizophrenia. In short, eating fish can make people healthier and smarter. Fish contains a lot of DHA, which is closely related to the development of the brain and the evolution of human beings.

What method to use to absorb DHA? It is not difficult to answer this question. Just prepare fish meals every day. To supplement your body with DHA, you should eat more fish. Some people say, "Donghu likes to eat when he wants to eat...". Then it is recommended that you add a dish of fish to the dishes you want to eat every day, which will improve your IQ and lay a sufficient material foundation for your mind's intelligence and flexibility. Starting today, let's talk about eating fish every day.

Eating fish will make your mind clear

The hypothesis that eating more fish can make your brain smart has been confirmed by experimental research in Japan and countries around the world. To improve IQ is an important issue for humans. This alone is a matter of course to be concerned about this issue. Human evolution theory and brain development are indispensable. The question is how to intake DHA is correct. What is the mechanism of action of DHA and why DHA can improve IQ? Everyone must want to understand this question.

If you don’t understand why fish contain DHA and don’t understand what mechanism DHA uses to enhance the function of the brain, you will naturally not be able to master the correct method of intake of DHA. For your own body and for your offspring, it is also necessary to figure out the knowledge about DHA.

The principle that eating fish can make people smart. Eating fish can make people smart. Professor Croft of the British Institute of Brain Nutrition and Chemistry published the hypothesis that "eating fish can make people smart" in his book "The Power of Power". The main point of this hypothesis is that DHA is indispensable for the development of the brain. This view has been confirmed by scientific experiments many years ago.

What is even more surprising is that Professor Croft pointed out: "Japanese children who often eat fish have higher IQs than European and American children who mainly eat meat, which can also be said to be the main research motivation of most scientists." DHA is found in large quantities in fish, and many countries have said that fish can make people smart since ancient times. Chinese folks also say that eating fish can strengthen the brain. In other words, although there was no scientific proof in the past, praise for the nutritional value of fish has been circulated in various countries. Professor Croft used scientific experiments to verify this.

What exactly is DHA? What is DHA that is so important to the brain? This question is not solved quickly, so you can't continue to talk about it. Furthermore, there are many people who say irresponsible. If you don't explain scientific principles, and if you don't explain why DHA is beneficial to the brain and the body, it won't convince people. The following is an easy-to-understand principle to explain DHA.

The original English name of DHA is Docose Hexaenoie Acid, which is made of its three abbreviations D. H. A.. DHA has other abbreviations, such as C22:6, N-3 or 22:6 (docosahexaenoic acid). These abbreviations are too complex, but they can represent the chemical structure of DHA. Let's explain it in detail as follows:

DHA has 22 carbon atoms (C) and 2 oxygen atoms (O), and many hydrogen atoms (H) are connected around it. The composition of these atoms is as follows: 22 carbon atoms are arranged side by side, each carbon atom has 4 hands, and each oxygen atom has 2 hands, and the hydrogen atom is spherically connected to these extended hands. If such a combination changes slightly, it can form completely different other substances, that is, it forms linolenic acid (a-Linolenic Acid) and EPA (eicosapentaenoic acid) similar to DHA and belong to the same family. These two substances are only slightly different from the number of carbon atoms and hydrogen atoms of DHA.

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :

Since DHA, linolenic acid and EPA are relatives of the same race, do they have the same functions or are they different? This is a very simple question, but it is not clear at the moment. However, it has been learned that the role they play in the human body is very different.

The role of DHA has been verified

As mentioned earlier, another abbreviation of DHA is {n-3}, and the full name of {n-3} is n-3 highly unsaturated fatty acid or n-3 polyvalent unsaturated fatty acid. The function of fatty acid is:

▲Reduce the cholesterol condition in the blood and prevent cardiovascular diseases caused by arteriosclerosis;

▲Make the blood less likely to coagulate;

▲Reduce inflammation;

▲Prevent cancer spread (under study).

These are some eye-catching effects. In addition, there are some functions that shock the world, which is mentioned earlier. DHA can improve brain function, enhance memory, and prevent brain aging.

Among the n-3 families, in addition to DHA, there are linolenic acid and EPA. Research has found that the latter two are not in the brain, which means that brain function has almost nothing to do with linolenic acid and EPA. The main reason why the mind becomes smart is that DHA is at work.

Which fish contain more DHA?

We have learned about the benefits of DHA for the human body from the paper published by Professor Croft and the experimental results introduced earlier. So, which fish contain DHA?

For fish containing DHA and fish without DHA, we distinguish whether the DHA content in 100 grams of fish meat exceeds 1 gram. If the amount of DHA in 100 grams exceeds 1 gram, this fish is called DHA fish.

▲DHA fish = 100 grams of fish containing more than 1 gram of fish include: tuna (fat part), red sweets, blue and white fish, saury, eel, sardine, and fish eggs.

▲The fish containing less than 1 gram of DHA and more than hundreds of milligrams include: rainbow trout, bluefish, frogfish, bamboo fish, rosy courgette, Japanese forkfish, constellation eel, jade stubble, flower crucian carp, hairtail, mullet, sailfish, golden-eyed bream, ?? fish, bonito, etc.

▲Fish containing a small amount of DHA include: fish, carp, oysters, bass, flounder, multi-scale eel, swallow ray, fragrant fish, bighead fish, octopus, cuttlefish, etc.

Note: Soybeans, soybeans, cream, sparse vegetables, fruits, algae and other foods do not contain DHA.

DHA is mainly concentrated in fish oil

Some people think that since DHA fish contains a lot of DHA, then pay attention to buying fish. In fact, it is not that simple. The amount of DHA contained in the entire fish introduced above is mainly concentrated in fish oil. If we do not pay special attention to eating fish oil, we cannot eat all the DHA contained in the fish.

Furthermore, the food we eat every day is of course not all fish. We need to eat vegetables, and we also need to eat meat. Of course, we eat fat and acid prevention in meat and vegetables. Other types of fat and acid prevention will inevitably affect the absorption and effect of DHA. In this way, it is important to understand how much DHA is contained in fish oil.

▲Fish with a higher DHA content ratio in fish oil:

Frogfish, rainbow trout, bighead fish, bonito, tinfish, ??? fish, fat-eyed herring, flower crucian carp, tuna (red meat part), cuttlefish, etc.

An indispensable substance.

From eating fish to absorbing DHA

DHA is so important for brain function, eating fish can replenish DHA to the body. Where is DHA distributed to the brain after entering the body? To solve this problem, the following experiment is carried out.

{experiment}

Feed mice with food containing brown oil (without linolenic acid and DHA) and after three months, feed 85% DHA for another six days.

{result}

The mice that had eaten brown oil-containing food for three months had a very small amount of DHA. However, after feeding DHA for six days, it was found that DHA entered the protrusions of mouse brain cells, mitochondria, and microsomes in the cell body. What's going on? It turned out that DHA was immediately supplemented where DHA was needed, such as the protrusions of brain cells, etc.; DHA would never wander around there if it was not needed. This experiment shows the changes in brain cells after short-term intake of high-sensitivity DHA. The following experiment is to understand the distribution of DHA in the brain after long-term intake of DHA.

{experiment}

The mice were fed a small amount of food containing sardine oil (containing a lot of DHA) every day for three consecutive months.

{result}

It was found that mouse brain cells contain a large amount of DHA. In other words, through two experiments, whether it is fed a small amount of food containing DHA for a long time or a large amount of food containing DHA in the short term, the DHA content in mice has increased, and DHA enters the cell membrane of brain cells in large quantities, small organs in the cell body and protrusions that can convey information, etc.

This also shows that any method to eat fish can supplement DHA, improve the level of DHA in the brain, thereby enhancing brain function, enhancing memory, and improving judgment, and it is still effective in the case of insufficient water supply. The activity of hydrogen lactate dehydrogenation was also measured in the above experiment. The activity of lactic acid dehydrogenation is present in large quantities in brain nerve cells, and the hippocampus part in the brain related to memory, etc. It is also found that in the determination that the sugar metabolism of the energy supply of the brain is closely related to the effect of the brain, the activity of lactic acid dehydrogenation is quite high in the brain of mice that eat sardine oil feed. This also shows why mice that eat sardine oil feed (containing a lot of DHA) become "mechanical mice", and they quickly find their outlets in the maze and drink water.

Eating fish can also prevent adult diseases, Alzheimer's disease and other high-dehyde and fatty acids from preventing inflammation. It can be said to be one of the most cutting-edge scientific research topics at present. The following is the most cutting-edge professional knowledge in the Japanese pharmacy industry, which may not be easy to understand. Please read slowly. The reason for suffering from asthmatic tracheitis is caused by a substance called aphlebotriene, a substance that can be inhibited by DHA and other series of highly unsaturated fatty acids. That is, one of the manifestations of inflammation, the effect of leukocytes is inhibited, which has been confirmed by experiments.

As mentioned earlier, it was found in the experiment that the two highly unsaturated fatty acids DHA and EPA in fish have more DHA content than EPA, so DHA has a greater effect on inhibiting inflammation.

In fact, all the experiments mentioned above were conducted on rats. Some people may doubt that the results obtained through rats can be applied to humans? To answer this question, introduce a clinical case.

Patients with chronic asthma tracheitis were given DHA series of EPA. After taking EPA, the concentration of arachidonic acid (the precursor substance for prostaglandin that causes inflammation) in the patient's blood decreased significantly, and the content of arachidonic acid decreased, which reduced the synthesis of prostaglandin E2 and inhibited the effect of leukocytes. In other words, it had a therapeutic effect on the inflammation of asthma tracheitis. Patients with rheumatoid arthritis were given EPA and found that arthritis was reduced after taking medication.

The view that using DHA and EPA can control inflammation is still in the research stage, but it is obvious from the current experimental results that the n-3 series of highly unsaturated fatty acids such as DHA and EPA have the effect of inhibiting inflammation.

To what extent can the inflammation be controlled, it is also to be discussed in future research. Before the end of the research, as long as you believe in the effect of DHA, eating fish regularly will definitely be beneficial. If someone is troublesome to wheezing tracheitis and rheumatoid arthritis, you might as well tell him about DHA and advise him to keep it alive.

Protect vision

Central retinal degeneration is a common cause of vision loss in the elderly. Large-scale French studies have found that fish rich in omega-3 fatty acids can reduce the risk of macular degeneration in the eyes due to aging.

Reduce the risk of heart disease

In the United States, heart disease is still the primary cause of death in adults. However, Harvard School of Public Health observed that taking about 2 grams of omega-3 fatty acids by eating fish once or twice a week can reduce the risk of sudden cardiac death by 36% and reduce the possibility of death by 17%.

Improve your brain power

"If you are about to face an important task or exam, I suggest you eat more fish." A study published in the American Journal of Public Science Library - Comprehensive pointed out that fish oil rich in omega-3 fatty acids is provided as a dietary supplement to a group of 18-25-year-olds. After 6 months, their brain power has steadily improved. The researchers believe that omega-3 fatty acids can affect memory storage function.

Prevent rheumatoid arthritis

A study of 32,000 women by Karolinska Medical College in Sweden shows that 210 mg of omega-3 fatty acids per day is equivalent to eating 1 fatty fish or 4 lean fish per week, which can reduce the risk of rheumatoid arthritis by 52%.

Promote development

A diet rich in omega-3 fatty acids is particularly important for pregnant women and can promote the development of the fetal brain and nervous system. In 2007, Wan Yexian published in the British medical journal The Lancet found that eating 3 to 4 servings of seafood (about 340 grams) per week can significantly improve the intelligence level, language expression ability and exercise ability of the baby after birth.

Extended lifespan

A new study, which has been observed for 16 years, found that eating fish can indeed help people live longer. Researchers found that consuming beneficial fatty acids in fish meat can reduce the mortality rate by 27%, and people who insist on eating fish will live two more years more than those who don’t.

Pre-spine and asthma

Eating more fish in childhood can effectively prevent asthma. A Dutch study of 7,210 children showed that children who started eating fish within 6 to 12 months had a 36% reduction in the risk of asthma by the age of 4. Researchers infer that this may be related to eating more fish can help fight inflammation.

Protect your skin

Fish oil has many benefits to the skin, which can regulate oil secretion and help moisturize. In addition, studies have shown that eating more fish can protect the skin from ultraviolet rays, help protect the skin collagen, thereby preventing the skin from loosening, wrinkles or sagging.

Increase sperm count

Eating habits are very important for friends who want to get pregnant. The Massachusetts General Hospital Fertility Center found that men who like to eat salmon, bluefish, and tuna have 34% more sperm than others.

Fish contain a lot of DHA, and it is closely related to brain development and human evolution.

What method to use to absorb DHA? It is not difficult to answer this question. Just prepare fish meals every day. To supplement your body with DHA, you should eat more fish. Some people say, "If you like to eat, eat when you want to eat...". Then it is recommended that you add a dish of fish to the dishes you want to eat every day, which will improve your IQ and lay a sufficient material foundation for your mind's intelligence and flexibility. Starting today, eat fish every day.

Eating fish will make your mind clear

The hypothesis that eating more fish can make your brain smart has been confirmed by experimental research in Japan and countries around the world. To improve IQ is an important issue for humans. This alone is a matter of course to be concerned about this issue. Human evolution theory and brain development are indispensable. The question is how to intake DHA is correct. What is the mechanism of action of DHA and why DHA can improve IQ? Everyone must want to understand this question.

If you don’t understand why fish contain DHA and don’t understand what mechanism DHA uses to enhance the function of the brain, you will naturally not be able to master the correct method of intake of DHA. For your own body and for your offspring, it is also necessary to figure out the knowledge about DHA.

The principle that eating fish can make people smart. Eating fish can make people smart. Professor Croft of the British Institute of Brain Nutrition and Chemistry published the hypothesis that "eating fish can make people smart" in his book "The Power of Power". The main point of this hypothesis is that DHA is indispensable for the development of the brain. This view has been confirmed by scientific experiments many years ago.

What is even more surprising is that Professor Croft pointed out: "Japanese children who often eat fish have higher IQs than European and American children who mainly eat meat, which can also be said to be the main research motivation of most scientists." DHA is found in large quantities in fish, and many countries have said that fish can make people smart since ancient times. Chinese folks also say that eating fish can strengthen the brain. In other words, although there was no scientific proof in the past, praise for the nutritional value of fish has been circulated in various countries. Professor Croft used scientific experiments to verify this.

What exactly is DHA? What is DHA that is so important to the brain? This question is not solved quickly, so you can't continue to talk about it. Furthermore, there are many people who say irresponsible. If you don't explain scientific principles, and if you don't explain why DHA is beneficial to the brain and the body, it won't convince people. The following is an easy-to-understand principle to explain DHA.

The original English name of DHA is Docose Hexaenoie Acid, which is made of its three abbreviations D. H. A.. DHA has other abbreviations, such as C22:6, N-3 or 22:6 (docosahexaenoic acid). These abbreviations are too complicated, but they can represent the chemical structure of DHA next to the bridge. Described in detail as follows:

DHA has 22 carbon atoms (C) and 2 oxygen atoms (O), and many hydrogen atoms (H) are connected around it. The composition of these atoms is as follows: 22 carbon atoms are arranged side by side, each carbon atom has 4 hands, and each oxygen atom has 2 hands, and the hydrogen atom is spherically connected to these extended hands. If such a combination changes slightly, it can form completely different other substances, that is, it forms linolenic acid (a-Linolenic Acid) and EPA (eicosapentaenoic acid) similar to DHA and belong to the same family. These two substances are only slightly different from the number of carbon atoms and hydrogen atoms of DHA.

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :

Since DHA, linolenic acid and EPA are relatives of the same race, do they have the same functions or are they different? This is a very simple question, but it is not clear at the moment. However, it has been learned that the role they play in the human body is very different.

The role of DHA has been verified

As mentioned earlier, another abbreviation of DHA is {n-3}, and the full name of {n-3} is n-3 highly unsaturated fatty acid or n-3 polyvalent unsaturated fatty acid. The function of fatty acid is:

▲Reduce the cholesterol condition in the blood and prevent cardiovascular diseases caused by arteriosclerosis;

▲Make the blood less likely to coagulate;

▲Reduce inflammation;

▲Prevent cancer spread (under study).

These are some eye-catching effects. In addition, there are some functions that shock the world, which are mentioned earlier. DHA can understand and improve brain functions, enhance memory, and prevent brain aging.

Among the n-3 families, in addition to DHA, there are linolenic acid and EPA. Research has found that the latter two are not in the brain, which means that brain function has almost nothing to do with linolenic acid and EPA. The main reason why the mind becomes smart is that DHA is at work.

Which fish contain more DHA?

We have learned about the benefits of DHA for the human body from the paper published by Professor Croft and the experimental results introduced earlier. So, which fish contain DHA?

For fish containing DHA and fish without DHA, we distinguish whether the DHA content in 100 grams of fish meat exceeds 1 gram. If the amount of DHA in 100 grams exceeds 1 gram, this fish is called DHA fish.

▲DHA fish = 100 grams of fish containing more than 1 gram of fish include: tuna (fat part), red sweets, blue and white fish, saury, eel, sardine, and fish eggs.

▲The fish containing less than 1 gram of DHA and more than hundreds of milligrams include: rainbow trout, bluefish, frogfish, bamboo fish, rosy courgette, Japanese forkfish, constellation eel, jade stubble, flower crucian carp, hairtail, mullet, sailfish, golden-eyed bream, ?? fish, bonito, etc.

▲Fish containing a small amount of DHA include: fish, carp, oysters, bass, flounder, multi-scale eel, swallow ray, fragrant fish, bighead fish, octopus, cuttlefish, etc.

Note: Soybeans, soybeans, cream, sparse vegetables, fruits, algae and other foods do not contain DHA.

DHA is mainly concentrated in fish oil

Some people think that since DHA fish contains a lot of DHA, then pay attention to buying fish. In fact, it is not that simple. The amount of DHA contained in the entire fish introduced above is mainly concentrated in fish oil. If we do not pay special attention to eating fish oil, we cannot eat all the DHA contained in the fish.

Furthermore, the food we eat every day is of course not all fish. We need to eat vegetables, and we also need to eat meat. Of course, we eat fat and acid prevention in meat and vegetables. Other types of fat and acid prevention will inevitably affect the absorption and effect of DHA. In this way, it is important to understand how much DHA is contained in fish oil.

▲Fish with a higher DHA content ratio in fish oil:

Frogfish, rainbow trout, bighead fish, bonito, tinfish, ??? fish, fat-eyed herring, flower crucian carp, tuna (red meat part), cuttlefish, etc.

An indispensable substance.

From eating fish to absorbing DHA

DHA is so important for brain function, eating fish can replenish DHA to the body. Where is DHA distributed to the brain after entering the body? To solve this problem, the following experiment is carried out.

{experiment}

Feed mice with food containing brown oil (without linolenic acid and DHA) and after three months, feed 85% DHA for another six days.

{result}

The mice that had eaten brown oil-containing food for three months had a very small amount of DHA. However, after feeding DHA for six days, it was found that DHA entered the protrusions of mouse brain cells, mitochondria, and microsomes in the cell body. What's going on? It turned out that DHA was immediately supplemented where DHA was needed, such as the protrusions of brain cells, etc.; DHA would never wander around there if it was not needed. This experiment shows the changes in brain cells after short-term intake of high-sensitivity DHA. The following experiment is to understand the distribution of DHA in the brain after long-term intake of DHA.

{experiment}

The mice were fed a small amount of food containing sardine oil (containing a lot of DHA) every day for three consecutive months.

{result}

It was found that mouse brain cells contain a large amount of DHA. In other words, through two experiments, whether it is fed a small amount of food containing DHA for a long time or a large amount of food containing DHA in the short term, the DHA content in mice has increased, and DHA has entered the cell membrane of brain cells in large quantities, small organs in the cell body and protrusions that can convey information, etc.

This also shows that any method to eat fish can supplement DHA, improve the level of DHA in the brain, thereby enhancing brain function, enhancing memory, and improving judgment, and it is still effective in the case of insufficient water supply. The activity of hydrogen lactate dehydrogenation was also measured in the above experiment. The activity of lactic acid dehydrogenation is present in large quantities in brain nerve cells, and the hippocampus part in the brain related to memory, etc. It is also found that in the determination that the sugar metabolism of the energy supply of the brain is closely related to the effect of the brain, the activity of lactic acid dehydrogenation is quite high in the brain of mice that eat sardine oil feed. This also shows why mice that eat sardine oil feed (containing a lot of DHA) become "mechanical mice", and they quickly find their outlets in the maze and drink water.

Eating fish can also prevent adult diseases, Alzheimer's disease and other high-dehyde and fatty acids from preventing inflammation. It can be said to be one of the most cutting-edge scientific research topics at present. The following is the most cutting-edge professional knowledge in the Japanese pharmacy industry, which may not be easy to understand. Please read slowly. The reason for suffering from asthmatic tracheitis is caused by a substance called aphlebotriene, a substance that can be inhibited by DHA and other series of highly unsaturated fatty acids. That is, one of the manifestations of inflammation, the effect of leukocytes is inhibited, which has been confirmed by experiments.

As mentioned earlier, it was found in the experiment that the two highly unsaturated fatty acids DHA and EPA in fish have more DHA content than EPA, so DHA has a greater effect on inhibiting inflammation.

In fact, all the experiments mentioned above were conducted on rats. Some people may doubt that the results obtained through rats can be applied to humans? To answer this question, introduce a clinical case.

Patients with chronic asthma tracheitis were given DHA series of EPA. After taking EPA, the concentration of arachidonic acid (the precursor substance for prostaglandin that causes inflammation) in the patient's blood decreased significantly, and the content of arachidonic acid decreased, which reduced the synthesis of prostaglandin E2 and inhibited the effect of leukocytes. In other words, it had a therapeutic effect on the inflammation of asthma tracheitis. Patients with rheumatoid arthritis were given EPA and found that arthritis was reduced after taking medication.

The view that using DHA and EPA can control inflammation is still in the research stage, but it is obvious from the current experimental results that the n-3 series of highly unsaturated fatty acids such as DHA and EPA have the effect of inhibiting inflammation.

To what extent can the inflammation be controlled, it is also to be discussed in future research. Before the end of the research, as long as you believe in the effect of DHA, eating fish regularly will definitely be beneficial. If someone is troublesome to wheezing tracheitis and rheumatoid arthritis, you might as well tell him about DHA and advise him to try eating fish regularly.

Some people calculated that the protein contained in 500 grams of big yellow croaker is about the content of 600 grams of eggs or 850 grams of pork. This means that the protein content is high.

The composition of amino acids of fish proteins is similar to that of human tissue proteins. They are rich in high-quality proteins, so they have higher physiological value. In addition, the muscle fibers of fish meat are relatively thin, the tissue proteins have soft structures, a lot of moisture content, and tender meat. They are easy to absorb and utilize by the human body. They are especially suitable for the elderly, children, and patients with liver disease.

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From this we can see that eating more fish is of great benefit to patients with liver disease. However, fish meat is different from animal meat. It contains more water and protein and has less connective tissue, so it is more prone to spoilage than animal meat, and it is faster. Even if some fish have just died, they often produce food poisoning toxins in their bodies. Therefore, eating fish must be fresh.

Fish contain a lot of DHA, and it is closely related to brain development and human evolution.

What method to use to absorb DHA? It is not difficult to answer this question. Just prepare fish meals every day. To supplement your body with DHA, you should eat more fish. Some people say, "If you like to eat, eat when you want to eat...". Then it is recommended that you add a dish of fish to the dishes you want to eat every day, which will improve your IQ and lay a sufficient material foundation for your mind's intelligence and flexibility. Starting today, eat fish every day.

Eating fish will make your mind clear

The hypothesis that eating more fish can make your brain smart has been confirmed by experimental research in Japan and countries around the world. To improve IQ is an important issue for humans. This alone is a matter of course to be concerned about this issue. Human evolution theory and brain development are indispensable. The question is how to intake DHA is correct. What is the mechanism of action of DHA and why DHA can improve IQ? Everyone must want to understand this question.

If you don’t understand why fish contain DHA and don’t understand what mechanism DHA uses to enhance the function of the brain, you will naturally not be able to master the correct method of intake of DHA. For your own body and for your offspring, it is also necessary to figure out the knowledge about DHA.

The principle that eating fish can make people smart. Eating fish can make people smart. Professor Croft of the British Institute of Brain Nutrition and Chemistry published the hypothesis that "eating fish can make people smart" in his book "The Power of Power". The main point of this hypothesis is that DHA is indispensable for the development of the brain. This view has been confirmed by scientific experiments many years ago.

What is even more surprising is that Professor Croft pointed out: "Japanese children who often eat fish have higher IQs than European and American children who mainly eat meat, which can also be said to be the main research motivation of most scientists." DHA is found in large quantities in fish, and many countries have said that fish can make people smart since ancient times. Chinese folks also say that eating fish can strengthen the brain. In other words, although there was no scientific proof in the past, praise for the nutritional value of fish has been circulated in various countries. Professor Croft used scientific experiments to verify this.

What exactly is DHA? What is DHA that is so important to the brain? This question is not solved quickly, so you can't continue to talk about it. Furthermore, there are many people who say irresponsible. If you don't explain scientific principles, and if you don't explain why DHA is beneficial to the brain and the body, it won't convince people. The following is an easy-to-understand principle to explain DHA.

The original English name of DHA is Docose Hexaenoie Acid, which is made of its three abbreviations D. H. A.. DHA has other abbreviations, such as C22:6, N-3 or 22:6 (docosahexaenoic acid). These abbreviations are too complex, but they can represent the chemical structure of DHA. Let's explain it in detail as follows:

DHA has 22 carbon atoms (C) and 2 oxygen atoms (O), and many hydrogen atoms (H) are connected around it. The composition of these atoms is as follows: 22 carbon atoms are arranged side by side, each carbon atom has 4 hands, and each oxygen atom has 2 hands, and the hydrogen atom is spherically connected to these extended hands. If such a combination changes slightly, it can form completely different other substances, that is, it forms linolenic acid (a-Linolenic Acid) and EPA (eicosapentaenoic acid) similar to DHA and belong to the same family. These two substances are only slightly different from the number of carbon atoms and hydrogen atoms of DHA.

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Since DHA, linolenic acid and EPA are relatives of the same race, do they have the same functions or are they different? This is a very simple question, but it is not clear at the moment. However, it has been learned that the role they play in the human body is very different.

The role of DHA has been verified

As mentioned earlier, another abbreviation of DHA is {n-3}, and the full name of {n-3} is n-3 highly unsaturated fatty acid or n-3 polyvalent unsaturated fatty acid. The function of fatty acid is:

▲Reduce the cholesterol condition in the blood and prevent cardiovascular diseases caused by arteriosclerosis;

▲Make the blood less likely to coagulate;

▲Reduce inflammation;

▲Prevent cancer spread (under study).

These are some eye-catching effects. In addition, there are some functions that shock the world, which is mentioned earlier. DHA can improve brain function, enhance memory, and prevent brain aging.

Among the n-3 families, in addition to DHA, there are linolenic acid and EPA. Research has found that the latter two are not in the brain, which means that brain function has almost nothing to do with linolenic acid and EPA. The main reason why the mind becomes smart is that DHA is at work.

Which fish have high body and high body contains more DHA?

We have learned about the benefits of DHA for the human body from the paper published by Professor Croft and the experimental results introduced earlier. So, which fish contain DHA?

For fish containing DHA and fish without DHA, we distinguish whether the DHA content in 100 grams of fish meat exceeds 1 gram. If the amount of DHA in 100 grams exceeds 1 gram, this fish is called DHA fish.

▲DHA fish = 100 grams of fish containing more than 1 gram of fish include: tuna (fat part), red sweets, blue and white fish, saury, eel, sardine, and fish eggs.

▲The fish containing less than 1 gram of DHA and more than hundreds of milligrams include: rainbow trout, bluefish, frogfish, bamboo fish, rosy courgette, Japanese forkfish, constellation eel, jade stubble, flower crucian carp, hairtail, mullet, sailfish, golden-eyed bream, ?? fish, bonito, etc.

▲Fish containing a small amount of DHA include: fish, carp, oysters, bass, flounder, multi-scale eel, swallow ray, fragrant fish, bighead fish, octopus, cuttlefish, etc.

Note: Soybeans, soybeans, cream, sparse vegetables, fruits, algae and other foods do not contain DHA.

DHA is mainly concentrated in fish oil

Some people think that since DHA fish contains a lot of DHA, then pay attention to buying fish. In fact, it is not that simple. The amount of DHA contained in the entire fish introduced above is mainly concentrated in fish oil. If we do not pay special attention to eating fish oil, we cannot eat all the DHA contained in the fish.

Furthermore, the food we eat every day is of course not all fish. We need to eat vegetables, and we also need to eat meat. Of course, we eat fat and acid prevention in meat and vegetables. Other types of fat and acid prevention will inevitably affect the absorption and effect of DHA. In this way, it is important to understand how much DHA is contained in fish oil.

▲Fish with a higher DHA content ratio in fish oil:

Frogfish, rainbow trout, bighead fish, bonito, tinfish, ??? fish, fat-eyed herring, flower crucian carp, tuna (red meat part), cuttlefish, etc.

An indispensable substance.

From eating fish to absorbing DHA

DHA is so important for brain function, eating fish can replenish DHA to the body. Where is DHA distributed to the brain after entering the body? To solve this problem, the following experiment is carried out.

{experiment}

Feed mice with food containing brown oil (without linolenic acid and DHA) and after three months, feed 85% DHA for another six days.

{result}

The mice that had eaten brown oil-containing food for three months had a very small amount of DHA. However, after feeding DHA for six days, it was found that DHA entered the protrusions of mouse brain cells, mitochondria, and microsomes in the cell body. What's going on? It turned out that DHA was immediately supplemented where DHA was needed, such as the protrusions of brain cells, etc.; DHA would never wander around there if it was not needed. This experiment shows the changes in brain cells after short-term intake of high-sensitivity DHA. The following experiment is to understand the distribution of DHA in the brain after long-term intake of DHA.

{experiment}

The mice were fed a small amount of food containing sardine oil (containing a lot of DHA) every day for three consecutive months.

{result}

It was found that mouse brain cells contain a large amount of DHA. In other words, through two experiments, whether it is fed a small amount of food containing DHA for a long time or a large amount of food containing DHA in the short term, the DHA content in mice has increased, and DHA has entered the cell membrane of brain cells in large quantities, small organs in the cell body and protrusions that can convey information, etc.

This also shows that any method to eat fish can supplement DHA, improve the level of DHA in the brain, thereby enhancing brain function, enhancing memory, and improving judgment, and it is still effective in the case of insufficient water supply. The activity of hydrogen lactate dehydrogenation was also measured in the above experiment. The activity of lactic acid dehydrogenation is present in large quantities in brain nerve cells, and the hippocampus part in the brain related to memory, etc. It is also found that in the determination that the sugar metabolism of the energy supply of the brain is closely related to the effect of the brain, the activity of lactic acid dehydrogenation is quite high in the brain of mice that eat sardine oil feed. This also shows why mice that eat sardine oil feed (containing a lot of DHA) become "mechanical mice", and they quickly find their outlets in the maze and drink water.

Eating fish can also prevent adult diseases, Alzheimer's disease and other high-dehyde and fatty acids from preventing inflammation. It can be said to be one of the most cutting-edge scientific research topics at present. The following is the most cutting-edge professional knowledge in the Japanese pharmacy industry, which may not be easy to understand. Please read slowly. The reason for suffering from asthmatic tracheitis is caused by a substance called aphlebotriene, a substance that can be inhibited by DHA and other series of highly unsaturated fatty acids. That is, one of the manifestations of inflammation, the effect of leukocytes is inhibited, which has been confirmed by experiments.

As mentioned earlier, it was found in the experiment that the two highly unsaturated fatty acids DHA and EPA in fish have more DHA content than EPA, so DHA has a greater effect on inhibiting inflammation.

In fact, all the experiments mentioned above were conducted on rats. Some people may doubt that the results obtained through rats can be applied to humans? To answer this question, introduce a clinical case.

Patients with chronic asthma tracheitis were given DHA series of EPA. After taking EPA, the concentration of arachidonic acid (the precursor substance for prostaglandin that causes inflammation) in the patient's blood decreased significantly, and the content of arachidonic acid decreased, which reduced the synthesis of prostaglandin E2 and inhibited the effect of leukocytes. In other words, it had a therapeutic effect on the inflammation of asthma tracheitis. Patients with rheumatoid arthritis were given EPA and found that arthritis was reduced after taking medication.

The view that using DHA and EPA can control inflammation is still in the research stage, but it is obvious from the current experimental results that the n-3 series of highly unsaturated fatty acids such as DHA and EPA have the effect of inhibiting inflammation.

To what extent can the inflammation be controlled, it is also to be discussed in future research. Before the end of the research, as long as you believe in the effect of DHA, eating fish regularly will definitely be beneficial. If someone is troublesome to wheezing tracheitis and rheumatoid arthritis, you might as well tell him about DHA and advise him to eat fish frequently.