Fish is one of the first choice foods to promote intellectual development. Fish head is rich in lecithin, which is an important source of neurotransmitters in human brain. It can enhance people's memory, thinking and analytical ability, control the degeneration of brain cells and delay aging. Fish is also an excellent source of high-quality protein and calcium, especially containing a lot of unsaturated fatty acids, which is particularly important for the normal development of the brain and eyes.

DHA contained in fish is a key element for nourishing brain.

Why do you often hear that eating fish makes you smart? In fact, there is a scientific basis. DHA contained in fish mainly exists in brain, retina and nerve in human body. DHA can maintain the normal function of retina, especially for infants, and promote the sound development of vision. DHA is also very helpful to the development of human brain and intelligence, and it is also an indispensable nutrient for the growth of nervous system.

Generally speaking, seafood contains DHA, but deep-sea fish, such as salmon, mackerel, sardines, saury and local fish, are the most abundant, especially in fatty tissues near fish eyes. Although cod, milk fish and mullet have high oil content, the omega-3 fatty acid content is not very high. Tuna, yellow croaker, perch, leucorrhea

The omega-3 fatty acid content of fish is even lower.

Brain food 2, walnuts

As we all know, walnut is a good food for nourishing the brain and is known as "brain gold". Because it is rich in unsaturated fatty acids, it is recognized as a traditional brain-nourishing and intelligence-improving food in China. Children must eat. It is advisable to eat 2-3 walnuts every day, and persevere in order to replenish the brain, enhance memory and eliminate brain fatigue.

Phospholipids in walnuts have a good health care effect on brain nerves. Walnut oil contains unsaturated fatty acids, which can prevent and treat arteriosclerosis. Walnut kernel contains zinc, manganese, chromium and other indispensable trace elements. The effect of walnut kernel on relieving cough and asthma is also very obvious. Winter has excellent curative effect on patients with chronic bronchitis and asthma.