A new study shows that vitamin D2 may reduce vitamin D3 levels, suggesting D3 is the more effective supplement for immune and overall health. A new study conducted by the University of Surrey, the ...

Increasing blood vitamin D levels with high-dose supplementation shows promise for people with first symptoms suggestive of ...

Medications that dont mix well with vitamin D include the weight loss drug orlistat (Xenical, Alli), various statins, such as ...

I t’s not hard to find a vitamin D–fortified food or beverage product. Companies have rolled out a steady stream of them over ...

Eight common medications can affect how vitamin D works in your body. Learn which drugs require special timing or monitoring ...