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Vitamins are organic substances that have no energy value and that are essential to the body as it cannot create them itself. Vitamins must therefore be supplied by the diet. There are two categories of vitamins: water-soluble vitamins (group B and C) and fat-soluble vitamins (A, D, E, K). There are 13 vitamins in total.
Vitamins have diverse biochemical functions. Some help to regulate our metabolism and our cell and tissue growth. Others function as antioxidants. The largest number of vitamins are used to support enzymes that work as catalysts in metabolism.
- Vitamin B1 contributes to normal energy metabolism
- Vitamin E helps to protect cells from oxidative stress.