home care health: Vitamin D3 - Solgar Vitamin D3 (Cholecalciferol) 1000 IU 1,000 IU 250 Sgels

A vitamin is an organic molecule (or a set of molecules closely aligned chemically, i.e. vitamers) that is an critical micronutrient which an organism needs in little quantities for the proper functional of its metabolism. critical nutrients cannot be synthesized in the organism, either at every or not in satisfactory 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 count up the three extra groups of critical nutrients: minerals, vital fatty acids, and essential amino acids. Most vitamins are not single molecules, but groups of joined 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 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 cutting 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 accumulation and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for bones and extra organs. The B puzzling vitamins sham as enzyme cofactors (coenzymes) or the precursors for them. Vitamins C and E doing 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 only source of vitamins was from food. If intake of vitamins was lacking, the upshot was vitamin lack and consequent want diseases. Then, commercially produced tablets of yeast-extract vitamin B obscure and semi-synthetic vitamin C became available.

This was followed in the 1950s by the enlargement production and publicity 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 abandoned a technical of micronutrients necessary to life, every of which he presumed to be amines. afterward this presumption was future distinct not to be true, the "e" was dropped from the name. every vitamins were discovered (identified) between 1913 and 1948.

Chewable Vitamin D3 1000 IU 180 Tablets D Vitamins Supplements Puritan's Pride