Are vitamin D3 and calcitriol the same thing?
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3 min read
While often discussed in relation to bone health, a recent study showed that vitamin D3 supplements are taken by an estimated 40 million Americans, while the more potent prescription calcitriol is used in specific medical cases. This reveals a common confusion: are vitamin D3 and calcitriol the same thing? They are not; one is a precursor to the other, with distinct functions and medical applications.