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What are the advantages and disadvantages of eating fish? How much is the best amount to eat in a day?

Fish has rich 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. absorb. The fat content of fish is much less than that of livestock meat, and fish contains a very special series of omega-3 fatty acids, such as EPA (Ecosapenoic acid, eicosapentaenoic acid) and DHA (Decosahexanoid acid, docosahexaenoic acid) . In addition, fish oil is also rich in vitamins A and D, especially the liver of fish. Fish also contain water-soluble vitamins B6, B12, niacin and biotin. Fish also contain minerals. The most noteworthy ones are cloves or sardines. If eaten with bones, they are a good source of calcium. Saltwater fish are rich in iodine; others such as phosphorus, copper, magnesium, and potassium. , iron, etc. can also be obtained when eating fish. DHA is a key element in promoting brain power. Why do we often hear that eating fish will make you smarter? In fact, it has a scientific basis. 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. Babies especially need this nutrient to promote the healthy development of vision. DHA is also greatly beneficial to human brain development and intelligence development, and is an indispensable nutrient for the growth of the nervous system. Generally, seafood contains DHA, but deep-sea fish such as salmon, mackerel, sardines, saury, and kingfish are richest in DHA, especially in the fatty tissue near the fish’s eyeballs. Although the oil content of cod, milkfish, and mullet is high, the content of omega-3 series fatty acids is not very high; the content of omega-3 series fatty acids of tuna, yellow croaker, sea bass, and white hairtail is even lower. DHA is very important for the rapidly developing brain development of fetuses and infants. Infants and young children cannot produce enough DHA for brain cell and neurological development, so they must obtain DHA from breast milk or infant formula. Breast milk is rich in DHA. Babies fed breast milk have better visual development and intellectual cognitive development than babies fed infant formula. The longer the baby is fed breast milk, the higher the baby's IQ will be, and the baby will grow up. Their academic performance in later life is also better, so breast milk is the best food for babies. However, if the mother does not supplement enough DHA-rich foods during pregnancy or lactation, the body will not contain enough DHA, and the DHA concentration in the infant's body may be insufficient. Therefore, pregnant and breastfeeding women should eat more deep-sea fish to increase the amount of DHA in their bodies during pregnancy or pass it on to their babies through breastfeeding. If it is inconvenient or you don’t like eating fish, you may have to consider taking capsule DHA supplements. When the mother is unable or stops breastfeeding, it is advisable to add DHA to the infant's diet. For example, choose formula milk powder with DHA added, or use fish to make supplementary food. However, some infant formula milk powder does not have DHA added. When purchasing Pay attention to signs. The DHA content in the blood of people suffering from Alzheimer's disease is on average 30 to 40% less than that of normal people. People who regularly eat fish are less likely to have their brains degenerate and can even improve the symptoms of Alzheimer's disease. Even in generally healthy people, a lack of DHA can cause reduced memory and learning abilities. Medical science has proven that eating fish regularly has many benefits. Fish is rich in protein, which can help the growth and development of infants, children and teenagers. It can also help with recovery and healing when you are sick or have wounds on your body. Moreover, the protein and muscle fiber structure of fish are relatively short, and there is less connective tissue. Therefore, fish tastes more delicate and smooth than other meats and is easier to digest. It is very suitable for young children and the elderly. Fish contains less fat than livestock meat, so it has lower calories than livestock meat. Medical research has found that Eskimos have a very low rate of cardiovascular disease. This is because their diet contains a large amount of marine fish rich in EPA and DHA. A survey in Japan also found that residents of coastal fishing villages suffer from cardiovascular disease. The proportion of diseases is lower than that of mainland farmers. The two special omega-3 series fatty acids in fish, EPA and DHA, can lower blood lipids, especially triglycerides and low-density lipoprotein cholesterol (bad cholesterol), and make platelets less likely to aggregate. It has the effect of preventing cardiovascular diseases and stroke caused by thrombosis, and can protect the heart. Research in Finland found that people who eat fish less than once a week have a higher rate of mild depression than people who often eat fish, because the EPA and DHA in fish can eliminate worries and prevent schizophrenia. In short, eating fish can make people healthier and smarter.

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