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CHEBI:31186 - alfacalcidol
A member of the class of D3 vitamins that is calciol in which the hydrogen at the 1α position is replaced by a hydroxy group. It is an active metabolite of cholecalciferol, which performs important functions in regulation of the calcium balance and the bone metabolism.
This entity has been manually annotated by the ChEBI Team.
Vitamins like A, D, E and K that dissolve in fats and are stored in body tissues. Unlike the water-soluble vitamins, these are stored in the body for long periods of time and generally pose a greater risk for toxicity when consumed in excess.