Fish head is not only nutritious and delicious, but also contains lecithin which fish lack, and is rich in 22-C 6- enoic acid (DHA). This is a highly unsaturated fatty acid, which is extremely important for promoting the growth and development of nerve cells, especially nerve conduction and nerve fiber cells, and is a brain-strengthening product. The content of DHA in the meat of pigs, cattle, sheep and other livestock does not exceed 10%, while the fish head is much higher than this level, especially the fish eye, which can be called a rich mine of DHA. It can be said that your mother likes to eat fish heads, or because she wants to leave the fish for you. .