I think this is more of a kind of commercial speculation, saying that walnuts make up the brain. This may be based on a little knowledge of nutrition. There are indeed some substances in walnuts that can be beneficial to brain health, but this effect should be minimal.

Walnut can nourish the brain because it contains an ingredient called linolenic acid. Walnut contains a lot of fat, 86% of which is unsaturated fatty acid, one of which is omega-3 unsaturated fatty acid, which is an essential nutrient for brain and cranial nerve. It can enhance the activity of brain cells, improve memory and improve thinking ability. Therefore, eating walnuts to "brain" is understandable.

However, don't forget that there are a lot of other unsaturated fatty acids in walnuts, and too many omega-6 unsaturated fatty acids will interfere with the absorption of omega-3 unsaturated fatty acids, affect the synthesis of lipoproteins and other substances in the human body, and easily cause tumors. So eat walnuts in moderation, just one handful a day.

The wooden diaphragm that we always throw away with the shells in walnuts also contains nutritional value that cannot be ignored.

The wooden diaphragm in walnut is called chopping wood. When eating walnuts, take them out and dry them to remove impurities, which becomes a versatile medicine. Drinking tea with split wood is helpful to promote blood flow in the body and improve the phenomenon of cold hands and feet, irregular menstruation and abnormal leucorrhea in women. Its kidney-tonifying effect is helpful to improve frequent urination and urgency; In addition, drinking a cup of distracted tea before going to bed can also treat insomnia and help some patients who often suffer from insomnia to help them sleep instead of sleeping pills.