Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new ...

Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new ...

Our bodies create vitamin D when ultraviolet rays in sunlight convert a protein called 7-dehydrocholesterol in the skin into ...

People who take the plant-based form of a common supplement may actually be depleting their stores of the most efficient form ...