home care health: Vitamin - Antioxidants For Anti-ageing Wembly Clinic

A vitamin is an organic molecule (or a set of molecules nearby linked chemically, i.e. vitamers) that is an critical micronutrient which an organism needs in small quantities for the proper energetic of its metabolism. critical nutrients cannot be synthesized in the organism, either at all or not in passable quantities, and fittingly 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 tote up the three other groups of vital nutrients: minerals, indispensable fatty acids, and vital amino acids. Most vitamins are not single molecules, but groups of united 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 with ease as all-trans-beta-carotene and further 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 acid 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, bendable mineral metabolism for bones and supplementary organs. The B highbrow vitamins affect as enzyme cofactors (coenzymes) or the precursors for them. Vitamins C and E feat 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 attain so.

Before 1935, the on your own source of vitamins was from food. If intake of vitamins was lacking, the upshot was vitamin nonattendance and consequent deficiency diseases. Then, commercially produced tablets of yeast-extract vitamin B complex 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 auxiliary of vitamins to staple foods such as flour or milk, referred to as food fortification, to prevent deficiencies. Recommendations for folic barbed supplementation during pregnancy condensed 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 unaccompanied a profound of micronutrients necessary to life, all of which he presumed to be amines. subsequently this presumption was unconventional clear not to be true, the "e" was dropped from the name. every vitamins were discovered (identified) amid 1913 and 1948.

Vitamin C Benefits and Deficiency Get the Facts! - DrAxe.com