Scientists compared vitamin D2 and D3 supplements in new studies. Results show D3 may boost immunity more than D2.

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin D2 supplements may lower blood levels of vitamin D3, which ...

The rate of people exposed to vitamin D toxicity increased by 1600% between 2005 and 2011. Taking too much vitamin D won't lead to liver toxicity, but can have other dangerous health effects. Physical ...

Bipolar disorder affects approximately 2.5% of the U.S. adult population and often necessitates a complex treatment approach. Traditional medications such as lithium and olanzapine are commonly used; ...

Most of us already know that vitamin D helps keep our bones powerful and our body healthy still when it is time to pick the ...