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Vitamins occur in a variety of related forms known as vitamers. A vitamer (/ˈvaɪtəmər/) of a particular vitamin is one of several related compounds that performs the functions of said vitamin and prevents the symptoms of deficiency of said vitamin.
Early research identified vitamins by their ability to cure vitamin-specific deficiency diseases. For example, vitamin B1 was first identified as a substance that prevented and treated beriberi. Subsequent nutrition research has revealed all vitamers exhibit biological activity against their specific vitamin deficiency, although different vitamers exhibit different potencies against those diseases.
A set of vitamers with related biological activity are grouped together by a general name, or generic descriptor, that refers to similar compounds with the same vitamin function. For example, vitamin A is the generic descriptor for the class of vitamin A vitamers which include retinol, retinal, retinoic acid, and provitamin carotenoids such as beta-carotene among others.[1][2]
^Institute of Medicine (2000-01-09). Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. doi:10.17226/10026. ISBN 978-0-309-07279-3. PMID 25057538.
^Institute of Medicine (2000-04-11). Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. doi:10.17226/9810. ISBN 978-0-309-06935-9. PMID 25077263.
Vitamins occur in a variety of related forms known as vitamers. A vitamer (/ˈvaɪtəmər/) of a particular vitamin is one of several related compounds that...
fatty acid). Vitamins occur in a variety of related forms known as vitamers. The vitamers of a given vitamin perform the functions of that vitamin and prevent...
Vitamins are organic molecules (or a set of closely related molecules called vitamers) that are essential to an organism in small quantities for proper metabolic...
often encountered: it occurs naturally in many foods, and is one form ("vitamer") of vitamin C, an essential nutrient for humans and many animals. Deficiency...
in alkaline solution, followed by the addition of methyl iodide. This vitamer, along with adenosylcobalamin, is one of two active coenzymes used by vitamin...
megaloblastic anemia with concurrent vitamin B 12 deficiency using B 12 vitamers (including cyanocobalamin), creates the possibility of hypokalemia due...
and position of methyl groups on the chromanol ring. All eight of these vitamers feature a chromane double ring, with a hydroxyl group that can donate a...
Niacin, also known as nicotinic acid, is an organic compound and a vitamer of vitamin B3, an essential human nutrient. It is produced by plants and animals...
vitamin A vitamers. There are also what are referred to as 2nd, 3rd and 4th generation retinoids which are not considered vitamin A vitamers because they...
Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin...
Insert" (PDF). "Vitamin B12-folate interrelationships". "Cellular folate vitamer distribution during and after correction of vitamin B12 deficiency: a case...
activity in a vitamin-deficient biological system, they are referred to as vitamers. The vitamin activity is as a coenzyme, meaning that its presence is required...
The term refers to a group of six chemically similar compounds, i.e., "vitamers", which can be interconverted in biological systems. Its active form, pyridoxal...
combination with nitrites. Hydroxocobalamin Hydroxocobalamin, a form (or vitamer) of vitamin B12 made by bacteria, and sometimes denoted vitamin B12a, is...
supplements to musculoskeletal or general health may be small. Several forms (vitamers) of vitamin D exist. The two major forms are vitamin D2 or ergocalciferol...
distinguished from folic acid (vitamin B9). However, folinic acid is a vitamer for folic acid and has the full vitamin activity of this vitamin. Levofolinic...
both β-carotene and retinol are simply considered to be different forms (vitamers) of vitamin A. "Provitamin B5" is a name for panthenol, which may be converted...
and vitamin B6, which occur in several chemically related forms known as vitamers, riboflavin is only one chemical compound. It is a starting compound in...
The retinoids are a class of chemical compounds that are vitamers of vitamin A or are chemically related to it. Retinoids have found use in medicine where...
referred to as niacin, is a vitamin family that includes three forms, or vitamers: niacin (nicotinic acid), nicotinamide (niacinamide), and nicotinamide...
in their diet, most of which are actually groups of related molecules, "vitamers", (e.g. vitamin E includes tocopherols and tocotrienols, vitamin K includes...
Pyridoxal phosphate (PLP, pyridoxal 5'-phosphate, P5P), the active form of vitamin B6, is a coenzyme in a variety of enzymatic reactions. The International...
Adenosylcobalamin (AdoCbl), also known as coenzyme B12, cobamamide, and dibencozide, is, along with methylcobalamin (MeCbl), one of the biologically active...
Cholecalciferol, also known as vitamin D3 and colecalciferol, is a type of vitamin D that is made by the skin when exposed to UV-B light; it is found in...
Sodium ascorbate is one of a number of mineral salts of ascorbic acid (vitamin C). The molecular formula of this chemical compound is C6H7NaO6. As the...
There is a growing amount of research demonstrating that adding various vitamer antioxidants (eg; retinol, alpha tocopherol, gamma tocopherol, tocopheryl...
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