There are two types of vitamins, one of which is the water-soluble vitamins, which include the B vitamins and vitamin C. The other is the fat-soluble vitamins. The water-soluble vitamins are vitamin C and vitamin B. The B vitamins are vitamin B1, vitamin B2, niacin, pantothenic acid, biotin, folic acid, vitamin B6, and vitamin B12. The water-soluble vitamins are water-soluble, and they are somewhat soluble in organic solvents as well as fats. Water-soluble vitamins are also generally excreted in the urine when taken in excess. Water-soluble vitamins can help regulate the body’s functions, supplement the body’s required nutrients, help the body metabolism and antioxidant, is an important nutrient for the body, the lack of vitamins will cause nutritional metabolism and other adverse effects on the body.