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Vitamin

Vitamin D

Vitamin D is a fat-soluble vitamin that the skin makes in sunlight and that also comes from a few foods. Its two main forms are D2 and D3.

Bone & Joint

Adverse findings

Ratings where the reported effect was unwanted. Each lists the studies behind it.

High blood calciumNot rated–No linked study

For information, not individual medical advice. Ingredient studies do not establish the effectiveness of these products.