Lunavira

Avitamer(/ˈvaɪtəmər/) is any form in which somevitaminoccurs. Each vitamer of a particular vitamin is a compound that performs the functions of that vitamin and prevents the symptoms of deficiency of the vitamin. Early research identified vitamins by their ability to cure vitamin-specificdeficiency diseases. For example, vitamin B1wasfirst identifiedas a substance that prevented and treatedberiberi. Subsequent nutrition research has revealed that 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, orgeneric descriptor, that refers to similar compounds with the same vitamin function. For example,vitamin Ais the generic descriptor for the class of vitamin A vitamers which includesretinol,retinal,retinoic acid, andprovitamincarotenoidssuch asbeta-carotene, among others.