(calcium, magnesium and phosphorus) and intervene in various metabolic activities - regulation of bone metabolism, immune defense, etc.
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In humans, the most important compounds that are part of this group are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). Both can be introduced with the diet and supplements, however, only some foods boast an admirable content of biologically active vitamin D. Most of the vitamin D present in the organism is however of endogenous origin.
Below we will learn more about which are the best nutritional sources of vitamin D, how it is obtained in its active form and why it is important.