Glossary V
Deutsch: Vitamin / Español: Vitamina / Português: Vitamina / Français: Vitamine / Italiano: Vitamina
Vitamin is an organic compound and an essential nutrient that an organism requires in limited amounts. An organic chemical compound (or related set of compounds) is called a vitamin when the organism cannot synthesize the compound in sufficient quantities, and it must be obtained through the diet; thus, the term vitamin is conditional upon the circumstances and the particular organism.