home care health: Vitamin - VITAMIN A – Important for our body

A vitamin is an organic molecule (or a set of molecules next door to partnered chemically, i.e. vitamers) that is an valuable micronutrient which an organism needs in small quantities for the proper functional of its metabolism. vital nutrients cannot be synthesized in the organism, either at every or not in sufficient quantities, and appropriately 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 enlarge the three additional groups of indispensable nutrients: minerals, vital fatty acids, and essential amino acids. Most vitamins are not single molecules, but groups of combined 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 competently as all-trans-beta-carotene and additional 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 mass and differentiation. Vitamin D provides a hormone-like function, changeable mineral metabolism for bones and other organs. The B highbrow vitamins perform as enzyme cofactors (coenzymes) or the precursors for them. Vitamins C and E conduct yourself 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 reach so.

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

This was followed in the 1950s by the growth production and promotion of vitamin supplements, including multivitamins, to prevent vitamin deficiencies in the general population. Governments mandated adjunct of vitamins to staple foods such as flour or milk, referred to as food fortification, to prevent deficiencies. Recommendations for folic acid supplementation during pregnancy reduced 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 unaided a obscure of micronutrients critical to life, every of which he presumed to be amines. later this presumption was difficult clear not to be true, the "e" was dropped from the name. every vitamins were discovered (identified) along with 1913 and 1948.

Long-Term Metformin Use Linked with Vitamin B12 Deficiency