Fish is rich in DHA, commonly known as brain gold, and it is also an unsaturated fatty acid, which is an indispensable part of the brain and retina. Eating fish for health is very popular with people. There are many long-lived people in Okinawa Prefecture, Japan. The most important reason is that they often eat fish.
1, brain strengthening and intelligence improving
Fish is rich in DHA, which mainly exists in brain, retina and nerve. DHA can not only maintain the normal function of human retina, but also benefit the development of human intelligent system. Therefore, eating more fish will make people smarter.
Step 2 lower cholesterol
Most of the fats contained in fish are unsaturated fatty acids, which are easily digested and absorbed by the human body. Digested and absorbed fatty acids can combine with blood cholesterol in the blood and take cholesterol away from blood vessels, thus reducing the cholesterol content in the body and being beneficial to health.
3. Promote development
Fish is rich in protein, and the content of protein in every 500g of fish is equivalent to the content of protein in 600g of eggs or 850g of pork. Rich protein is the carrier of human life, which has the functions of balancing nutrition, regulating water balance in the body and improving immunity, and can effectively help the growth and development of infants, children and adolescents.
Step 4 prevent asthma
Eating more fish in childhood can effectively prevent asthma. A study of 72 10 children in the Netherlands shows that children who start eating fish within 6~ 12 months will significantly reduce the risk of asthma by 36% at the age of 4. The researchers concluded that this may be related to eating more fish and helping to fight inflammation.
1, large deep-sea fish
The study found that the bigger the fish, the more toxins accumulated in the body, mainly distributed in internal organs, fish heads and reproductive organs. The fish contaminated by ciguatoxin has no obvious abnormality in sense, smell and taste, and its toxicity can not be destroyed by heating or freezing.
In this regard, experts suggest that fish below 1.5 kg should be selected as far as possible, and fish heads, viscera and other parts with high toxin content should be removed when eating fish.
2. Red meat fish
Because of the different kinds of fish, there are red-fleshed fish such as tuna and white-fleshed fish such as hairtail, but if the color of fish is too bright red or bright white, it is probably the "credit" of dyes.
In addition, some fish are polluted by heavy metals or pesticides, and there are a lot of biotoxins in their bodies, which can also lead to red meat. Especially pregnant women, lactating women and pregnant women should not eat these fish.
3. salted fish
A large number of experiments have been carried out in the curing process of salted fish. Salted fish contains nitrate, which will be reduced to nitrite under the action of bacteria. In the curing process, a large number of amines will be decomposed and combined with nitrite to form nitrosamines. Nitrosamine is a compulsory cancer, which is easy to cause nasopharyngeal carcinoma, esophageal cancer, gastric cancer, liver cancer and other cancers.
It is best to stew salted fish instead of frying it, because the nitrosamine content of fried salted fish is 2.5 times higher than that of stewed fish, and it is best not to drink soup when eating stewed fish, which can minimize the intake of nitrosamines.
4. Sashimi
Sashimi is very popular with young people, but sashimi is very easy to cause parasitic infection. If you eat sashimi infected with parasites, it may lead to parasitic infection. When eating meat such as fish and shrimp, it is best not to eat it raw, but to cook it thoroughly before eating it to avoid parasitic infection.
In addition, chopping boards, knives, and utensils containing meat food must be cleaned before use, and raw and cooked should be separated. If there are disinfection conditions, it is safer to use after disinfection and avoid parasitic infection.
1, don't eat fish on an empty stomach.
When eating fish, it should be noted that fish contains a lot of purines, which need to be decomposed by carbohydrates. If we eat fish on an empty stomach, it will easily lead to an increase in purine content in the body, resulting in an acid-base imbalance in the body. It is best to eat rice first to help decompose purine substances in fish.
2. Don't eat live fish right away
It is best not to eat fresh fish that has just been killed. Because fish will have a process of acid excretion, the fish that has just been slaughtered has not been completely decomposed, and some toxic substances may remain. Generally speaking, small fish are refrigerated 1~2 hours after slaughter, and big fish are refrigerated for longer.
Step 3 eat octagonal fish
Generally speaking, "eight times as big" fish is more suitable. The size of a fish determines its taste and safety. Too small fish may be immature, the meat is not fresh enough, and there will be more fishbones. Too big fish have rough meat and are easy to accumulate harmful substances in the body.
4. Beware of fish gall poisoning
Fish gall is a traditional Chinese medicine, which is used to treat pinkeye, gallbladder pain, laryngitis and malignant ulcer. The Turkish side said that fish gall can clear away heat and detoxify, improve eyesight and relieve cough, so there are always people eager to try. Experts pointed out that fish bile contains extremely strong toxins, which are heat-resistant and will not be destroyed by alcohol, so poisoning may occur whether cooked, eaten raw or taken with wine.
1, crucian carp, crucian carp, Yiqi Jianpi, diuretic, detumescence, clearing away heat and toxic materials, dredging collaterals and promoting lactation.
2. Carp has the functions of invigorating spleen, stimulating appetite, promoting diuresis, relieving swelling, relieving cough and asthma, preventing miscarriage and promoting lactation, and clearing away heat and toxic materials.
3. Silver carp has the effects of warming the middle warmer, warming the stomach and moistening the skin. It is a kind of health food for warming and nourishing moderate coke.
4, herring has the function of invigorating qi and nourishing stomach, eliminating dampness and benefiting water, expelling wind and removing annoyance. The trace elements such as zinc and selenium contained in it help to fight cancer.
5, snakehead tonifies spleen and diuresis, removes blood stasis and promotes new life, clears away heat and dispels wind, and nourishes liver and kidney.
6, cuttlefish has the function of nourishing liver and kidney, nourishing qi and blood, clearing stomach and removing heat. It is a healthy food for women.
7. Grass carp has the functions of warming the stomach, calming the liver and expelling wind, and is a good product for warming the middle warmer and tonifying the deficiency.
8. Hairtail has the functions of warming stomach and tonifying deficiency, moistening skin and expelling wind, killing insects and nourishing five internal organs.
9. Eel has the functions of benefiting qi and nourishing blood, softening tendons and benefiting bones.
10, Monopterus albus enters the liver, spleen and kidney, which has the functions of tonifying deficiency, expelling wind and dampness, strengthening bones and muscles, and regulating blood sugar to a certain extent.
1 1, Misgurnus anguillicaudatus tonifies the middle energizer, nourishes qi, eliminates dampness and quenches thirst, sobers up, detoxifies hemorrhoids, reduces swelling and protects liver.