For a long time, it has been known that fish is a food with high nutritional value, not only not inferior to animal meat but also in many ways beyond meat. Of the protides, the most important are the albumin, globulin, and nucleoprotite. In general, fish protit and amino acid composition are similar to those found in warm-blooded animals. Compared with meat, the amount of lysine, tyrosin, tritophan, xystin and methionine is higher, while the amount of histidine and acginine is lower. Fresh fish protides are easier to digest and assimilate than those from hot-blooded animal meat.
Fish fats include lipids and liopides. Among lipids, mainly triglixerides of various fatty acids, of which up to 90% are biologically unsaturated fatty acids: oleic, linoleic, arachidinic, etc.
Recently, the fish has been featured even more due to the new findings of scientists. In fact, it was found that ethnic groups that ate a lot of healthy fish had fewer diseases than those that ate a lot of meat. The Eskimos live on cold, ice, but do not suffer from cardiovascular disease. Japanese children are healthier and smarter than children in many other countries. Why is that, through studying food and eating habits of the Eskimos and the Japanese, it is found that the daily fish dish has brought them health and intelligence.
This is explained that there are two nutrients that are very precious to human health: EPA is effective in preventing cardiovascular disease and DHA has a very important role in the nervous system.
The EPA contained in unsaturated fatty acids, a lot in the greenback fish, can prevent atherosclerosis and heart attack. DHA is also present in unsaturated fatty acids of fish and plays an important role in the growth of brain cells and nervous system. Scientists have proven that DHA has a great influence on the ability of the brain to explore and judge synthesis. Lack of this substance, people will reduce memory, less intelligence. People who regularly eat fish have always supplemented the DHA necessary for the brain, enhancing the brain’s judgment and judgment capacity.
There is also unsaturated fatty acids in meat, but the EPA is very low and has almost no DHA. Common foods like whole grains, fruits, and legumes are also DHA free. Thus, almost only fish provide DHA to humans. This substance is essential for all ages. Children need DHA to develop brain cells. Elderly people need DHA to slow brain aging, avoid confusion in old age.
The above finding is consistent with the judgment of many peoples from ancient times. The effect of fish brain tonic has been known to humans for a long time. The British people of ancient times considered fish to be the “intellectual food”. The Chinese have a saying: “Eat fish for a clear mind”; Especially the fish head dish that is said to eat more will strengthen the brain and help smarter. By now everything is clear, in the fish the concentration of DHA is more concentrated in the fish head.
Also, nutritionists recommend that people increase their fish intake to protect health and intelligence, especially for the elderly. If possible, should eat at least four meals per week of fish and eat boiled fish or cooked fish, do not eat fried fish because DHA is decomposed by high temperature.
Clearly fish is a precious food, but it must be fresh fish.