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vitamin    音标拼音: [v'ɑɪtəmən]
n. 维他命,维生素

维他命,维生素

vitamin
n 1: any of a group of organic substances essential in small
quantities to normal metabolism

Vitamin \Vit"a*min\ (v[imac]t"[.a]*m[i^]n), n.
any of several organic chemical substances not synthesized by
an animal and required in small quantities for normal
metabolism, present in and obtained from the natural foods
eaten by the animal. Human vitamins are also produced
synthetically, and taken in pure form or in mixtures, as
dietary supplements. Deficiencies of specific vitamins lead
to certain specific disorders, such as scurvy, caused by an
insufficiency of vitamin C (ascorbic acid).

Note: Most vitamins act as coenzymes or precursors to
coenzymes, and are not consumed for energy production
or incorporated into structural units of the cell.
[PJC]

39 Moby Thesaurus words for "vitamin":
adermin, adjuvant, aneurin, antiberi-beri factor, ascorbic acid,
axerophthol, biotin, carminative, carotene, cholecalciferol,
choline, cobalamin, counterirritant, cryptoxanthin, cyanocobalamin,
emmenagogue, ergocalciferol, expectorant, folic acid, hepatoflavin,
hormone, inositol, lactoflavin, maturative, menadione,
naphthoquinone, niacin, nicotinic acid, ovoflavin, pyridoxine,
tocopherol, vasodilator, vitamin B, vitamin Bc, vitamin D,
vitamin G, vitamin H, vitamin K, vitamin M


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  • Vitamins and Minerals From A to Z - WebMD
    One type comes from animal sources of food It helps you see at night, make red blood cells, and fight off infections The other type is in plant foods It helps prevent damage to cells and an eye
  • Vitamin | Definition, Types, Facts | Britannica
    All vertebrates, including humans, require dietary sources of vitamin A, vitamin D, thiamin, riboflavin, vitamin B 6, and pantothenic acid; some vertebrates, particularly the more highly evolved ones, have additional requirements for other vitamins
  • Vitamin and Mineral Supplement Fact Sheets - Office of Dietary . . .
    Very few foods naturally have vitamin D Fatty fish such as salmon, tuna, and mackerel are among the best sources Fortified foods like milk provide most of the vitamin D in American diets
  • Vitamins Minerals - Cleveland Clinic
    While it isn’t a vitamin, experts often group choline (pronounced “KO-leen”) in with them It’s an essential micronutrient that works similarly to certain vitamins
  • Vitamins: MedlinePlus Medical Encyclopedia
    There are 13 essential vitamins This means that these vitamins are required for the body to work properly They are: Vitamins are grouped into two categories: Fat-soluble vitamins are stored in the body's liver, fatty tissue, and muscles The four fat-soluble vitamins are vitamins A, D, E, and K





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