Function
There are 13 essential vitamins. This means that these vitamins are required for the body to work properly. They are:
Vitamin A
Vitamin C
Vitamin D
Vitamin E
Vitamin K
Vitamin B1 (thiamine)
Vitamin B2 (riboflavin)
Vitamin B3 (niacin)
Vitamin B6 (pyridoxine)
Vitamin B12 (cyanocobalamin)
Pantothenic acid (B5)
Biotin (B7)
Folate (folic acid or B9)
Vitamins are grouped into two categories:
Fat-soluble vitamins are stored in the body’s liver, fatty tissue, and muscles.
The four fat-soluble vitamins are vitamins A, D, E, and K. These vitamins are absorbed more easily by the body in the presence of dietary fat. Water-soluble vitamins are not stored in the body. The nine water-soluble vitamins are vitamin C and all the B vitamins.
Antioxidants
Source: National Institutes of Health, Office of Dietary Supplements.
Contents
and minerals are nutrients your body needs in small amounts to work properly and stay healthy.
Classification
In humans there are 13 vitamins: 4 fat-soluble (A, D, E, and K) and 9 water-soluble (8 B vitamins and vitamin C).
Water-soluble vitamins dissolve easily in water and, in general, are readily excreted from the body, to the degree that urinary output is a strong predictor of vitamin consumption. [25] Because they are not as readily stored, more consistent intake is important. Vitamins A and D can accumulate in the body, which can result in dangerous hypervitaminosis.