A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in your blood. It can indicate whether the vitamin D levels in your body are low or high. Low vitamin D levels can ...

A blood test may have the potential to speed accurate diagnosis – and proper treatment – of bipolar disorder in children, new research suggests. Researchers at The Ohio State University found that ...

Key Takeaways Vitamin D may help lower blood pressure in people with pre-existing high blood pressure and low vitamin D ...

A new study suggests that personalized vitamin D3 supplementation, tailored to individual blood levels, may significantly ...

Adults with heart disease who had a previous heart attack and took vitamin D doses tailored to reach optimal blood levels ...

Strong bones and steady health depend on more than just what’s on the plate; they rely on a smart balance of nutrients. Among them, calcium and vitamin D stand out as a powerful pair. One builds the ...

In the summertime, vitamin D levels might not be much of a concern for many runners, considering the time we spend exercising ...