Vitamines

Definition

A vitamin is an organic substance that is needed in small amounts for metabolic cycles and can not be synthesized in sufficient quantities by the body.

Fat-soluble vitamins

- →    Vitamine A ( retinol, carotenoids) - →    Vitamine D ( ergocalciferol, cholecalciferol) - →    Vitamine E ( tocopherols, tocotrienols) - →    Vitamine K ( phylloquinone, menaquinone)

Water-soluble vitamines

- →    Vitamine B1 ( thiamine) - →    Vitamine B2 ( riboflavine) - →    Vitamine B3 ( niacine, vitamine PP) - →    Vitamine B5 ( pantothenic acid) - →    Vitamine B6 ( pyridoxine) - →    Vitamine B7 = B8 ( biotine) - →    Vitamine B9 ( folic acid) - →    Vitamine B12( cobalamine) - →    Vitamine C ( ascorbic acid)