Vitamin D. It's often dubbed the "sunshine vitamin," and it's responsible for things like strengthening your bones, regulating your mood, and supporting your immune system. But vitamin D isn't ...

vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). While both forms serve similar functions in the body, there are differences in their sources, metabolism, and effectiveness.

Absorption Both vitamins D2 and D3 effectively absorb into the bloodstream, but there are differences in how the body ...

There are two types of vitamin D supplements available for over-the-counter purchase (vitamin D2 and vitamin D3). Vitamin D3 is the type that most experts believe should be utilized in clinical ...