A vitamin is an organic molecule (or a set of molecules alongside amalgamated chemically, i.e. vitamers) that is an vital micronutrient which an organism needs in little quantities for the proper functional of its metabolism. essential nutrients cannot be synthesized in the organism, either at every or not in plenty quantities, and for that reason 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 increase the three further groups of vital nutrients: minerals, indispensable fatty acids, and essential 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 without difficulty as all-trans-beta-carotene and extra 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 prickly 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 bump and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for bones and further organs. The B perplexing vitamins con as enzyme cofactors (coenzymes) or the precursors for them. Vitamins C and E undertaking 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 pull off so.
Before 1935, the lonely source of vitamins was from food. If intake of vitamins was lacking, the outcome was vitamin nonattendance and consequent nonappearance diseases. Then, commercially produced tablets of yeast-extract vitamin B perplexing and semi-synthetic vitamin C became available.
This was followed in the 1950s by the addition production and marketing of vitamin supplements, including multivitamins, to prevent vitamin deficiencies in the general population. Governments mandated accessory 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 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 only a complex of micronutrients valuable to life, all of which he presumed to be amines. with this presumption was highly developed certain not to be true, the "e" was dropped from the name. every vitamins were discovered (identified) amid 1913 and 1948.
Vitamin D-3 Powder (2000 IU per 1\/4 Tsp.) - 4 oz (113 Grams)
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