Integratore di Vitamina D

Vitamin D refers to two compounds, vitamin D2 ergocalciferol and vitamin D3 cholecalciferol . Vitamin D2 derives from irradiation of the plant sterol, ergosterol, and is provided by the diet. Vitamin D3 originates from a cutaneous compound by endogenous synthesis. Vitamin D was initially described at the time of the industrial revolution, when...