Concept:
Vitamins:
- Vitamins are organic compounds that are present in minute amounts in natural foodstuffs.
- Most vitamins come from food because the body either does not produce them or produces very little.
- Vitamins are of two types.
- Fat-soluble vitamins- Vitamins A, D, E, K.
- Water-soluble vitamins- Vitamin C and all the B vitamins.
- There are 13 vitamins - A, C, D, E, K, and B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, B6, B12, and folate), each of them have a different job.
- Vitamin A, D, E, K are Fat-Soluble vitamins and are stored in fat cells while vitamins B and C are water-soluble vitamins that are not stored in your body.
- The liver acts as a storage site for vitamin A, D, E, K, and B12 for the times when they may be lacking in the diet.
- Vitamin D acts as a hormone, produced by the kidneys it helps to control the concentration of calcium in the blood and is vital for the development of strong bones.
- Water-soluble vitamins like Thiamine, folate, biotin, riboflavin are synthesized by gut bacteria.
Explanation:
- Vitamin E is a mixture of four vitamins called α, β, γ and δ tocopherols among which α tocopherol is the most active.
- Characteristics:
- Light yellow fat soluble in oils.
- Stable to heat and oxidation.
- Sources are cotton seed oil, maize oil, peanut oil and wheat germ oil.
- Deficiency causes damage to the reproductive system.
Hence, Vitamin E is also called tocopherol.
Additional Information
- Riboflavin is vitamin B2.
- Calciferol is vitamin D.
- Thiamine is vitamin B1.

