Taking too much vitamin D can cause nausea, vomiting, weakness, and bone pain. Over time, vitamin D toxicity may cause heart ...

While the recommended daily intake of vitamin D is 600 international units (IU) a day, you may need to take up to 3000 IU ...

Taking vitamin D2 may lower vitamin D3 levels, suggesting the two forms aren’t interchangeable. Vitamin D3 appears more ...

Fact checked by Jennifer Klump Daylight saving time doesn’t end for another month, but the precious hours of sunlight are already slipping away. Now’s the time to prepare for darker mornings and ...

Vitamin D does more than support bone health — researchers now say it could be vital for maintaining muscle strength as we ...

Research warns that one widely used vitamin D supplement may unintentionally lower the body’s natural D3 levels.

They may recommend taking a high dose of vitamin D for the first few weeks just to try and get you back to normal. You’ll want to test again about six months later to see if that supplementation was ...

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 ...

Could the "sunshine vitamin" be a silent player in breast cancer risk? While research is ongoing, some studies suggest low ...

When it comes to the complete well-being of the human body, vitamin D plays a crucial role. It keeps the bones healthy and ...

The best Vitamin D supplement deals are dropping live on Amazon Prime Day, October 7. Shoppers are already grabbing discounts ...