home care health: Vitamin - Introducing Vitamin C: The Healing Nutrient

A vitamin is an organic molecule (or a set of molecules nearby combined chemically, i.e. vitamers) that is an critical micronutrient which an organism needs in little quantities for the proper lively of its metabolism. valuable nutrients cannot be synthesized in the organism, either at every or not in acceptable quantities, and suitably must be obtained through the diet. Vitamin C can be synthesized by some species but not by others; it is not a vitamin in the first instance but is in the second. The term vitamin does not augment the three extra groups of indispensable nutrients: minerals, necessary fatty acids, and necessary amino acids. Most vitamins are not single molecules, but groups of associated molecules called vitamers. For example, there are eight vitamers of vitamin E: four tocopherols and four tocotrienols. Some sources list fourteen vitamins, by including choline, but major health organizations list thirteen: vitamin A (as all-trans-retinol, all-trans-retinyl-esters, as well as all-trans-beta-carotene and other provitamin A carotenoids), vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B9 (folic sharp or folate), vitamin B12 (cobalamins), vitamin C (ascorbic acid), vitamin D (calciferols), vitamin E (tocopherols and tocotrienols), and vitamin K (phylloquinone and menaquinones).

Vitamins have diverse biochemical functions. Vitamin A acts as a regulator of cell and tissue accrual and differentiation. Vitamin D provides a hormone-like function, flexible mineral metabolism for bones and other organs. The B rarefied vitamins be in as enzyme cofactors (coenzymes) or the precursors for them. Vitamins C and E put-on as antioxidants. Both deficient and excess intake of a vitamin can potentially cause clinically significant illness, although excess intake of water-soluble vitamins is less likely to realize so.

Before 1935, the lonesome source of vitamins was from food. If intake of vitamins was lacking, the result was vitamin dearth and consequent want diseases. Then, commercially produced tablets of yeast-extract vitamin B rarefied and semi-synthetic vitamin C became available.

This was followed in the 1950s by the accumulation production and publicity of vitamin supplements, including multivitamins, to prevent vitamin deficiencies in the general population. Governments mandated auxiliary of vitamins to staple foods such as flour or milk, referred to as food fortification, to prevent deficiencies. Recommendations for folic sharp supplementation during pregnancy abbreviated risk of infant neural tube defects.

The term vitamin is derived from the word vitamine, which was coined in 1912 by Polish biochemist Casimir Funk, who abandoned a perplexing of micronutrients critical to life, every of which he presumed to be amines. behind this presumption was sophisticated certain not to be true, the "e" was dropped from the name. every vitamins were discovered (identified) surrounded by 1913 and 1948.

Jane Vitamin A Benefits - Aapki Aankho Ke Liye Faydemand