B vitamins are also called B vitamins (also called vitamin B, vitamin B complex or vitamin B complex). There are eight kinds of * * *, so it is called "home". They are not exactly the same in structure, but they also have the same characteristics. Vitamin B includes vitamin B 1, vitamin B2, vitamin B6, vitamin B 12, nicotinic acid, pantothenic acid and folic acid. B vitamins are indispensable substances for promoting metabolism and converting sugar, fat and protein into calories. If vitamin B is lacking, the cell function will immediately decline, causing metabolic disorder, and then the human body will be depressed and lose appetite. On the contrary, excessive drinking can lead to liver injury, which is closely related to vitamin B deficiency in many cases. Vitamin B supplementation can relieve mood.