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One of two or more related chemical substances that fulfill the same specific vitamin function.

vi′ta·mer′ic (-mĕr′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chem a chemical compound which exhibits vitamin activity
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
For example, L-5-Methyltetrahydrofolate is a B9 vitamer that may be more effective than typical Folic Acid, particularly for persons with the MTHFR gene mutation.
Market players in plant based supplements: Some of the players in the plant based supplements are Ora organic, Pranin Organic, Vitamer Laboratory, Orgenetics, Ion labs, Cargill Incorporated, Now foods and Dupont.
MilliporeSigma launched Metafolin L-Methylfolate in 2001 as the first commercially available form of the naturally occurring folate vitamer. This ingredient is aimed at helping millions of people around the world maintain sufficient folate levels in all stages of life.
The effect of increasing dietary inclusion levels of vitamin [K.sub.1] on the concentration and conversion of vitamer types in visceral organ and muscle tissue was assessed.
Plant proteins and whole-food-based products are of interest, adds Jane Drinkwalter, vice president of sales for Vitamer Labs and VitaCeutical Labs, which are divisions of Irvine, Calif.-based Nexgen Pharma Inc.
A relatively simple task is the differentiation of the various vitamer species of vitamin D.
Supplemental folic acid and total folate intakes were strongly, positively associated with circulating total folate and all vitamer levels.
A vitamer of a specific vitamin is a substance that has vitamin activity or functionality.
Kok et al., "Red blood cell folate vitamer distribution in healthy subjects is determined by the methylenetetrahydrofolate reductase C677T polymorphism and by the total folate status," The Journal of Nutritional Biochemistry, vol.
(39) This is in contrast to alpha-tocopherol's negative link to cancer, marked by either no effect or mitigation of tocotrienol's functions; this E vitamer has also been associated with an increased risk of prostate cancer.
Vitamer levels, stress Response, Enzyme activity and Gene regulation of Arabidopsis Lines mutant in the pyridoxine/pyridoxamine 5'phosphate oxidase (PDX3) and the pyridoxal kinase (SOS4) gene involed in the vitamin B6 salvage pathway.Plant physiology, 145: 985-996.
According to the authority's official statement, FAS has discovered that Pharmacy Chain 36.6 put on shelves a food supplement named Natural Capillary Protector, manufactured by Vitamer. The packaging used for the product was similar to the packaging of an equivalent product, Kapilar, produced by Diod.