Walnut shells can be used for boiling water to drink, and their effects and functions are as follows:

First, it can effectively prevent thrombosis, because walnut shell contains antioxidant components, which can improve the permeability of human blood vessels, prevent platelet aggregation, maintain normal blood circulation, and thus reduce the occurrence of thrombosis;

Second, the shell of walnut is also rich in vitamin B, vitamin E and trace elements. Boiling walnut shells in water can absorb these nutrients, improve memory, and play a role in strengthening brain and improving intelligence.

Third, it can provide rich nutrition for hair and prevent black hair from turning white.