Kali Muscle reflects on the hidden dangers behind extreme bodybuilding practices and a high-performance lifestyle. While undergoing detailed health screenings, he learns of possible anemia, vitamin D ...

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 ...

Coming in as the most vitamin A–rich food, three ounces of pan-fried beef liver contain 6,582 micrograms (mcg) of the vitamin ...

Research suggests that sunscreen use does not lead to low vitamin D levels. It is recommended that vitamin D be obtained through dietary sources and, if necessary, vitamin D supplements.

There are a few ways that vitamin C may be helpful for your heart. “ Vitamin C is a powerful antioxidant that helps protect ...

The National Institutes of Health reports that one in four Americans is deficient in Vitamin D. This essential nutrient is especially important as we head into the cooler weather in fall and winter.

Vitamin D2 supplements may lower blood levels of vitamin D3, which the body uses more effectively. Vitamin D2 comes from ...

You can safely take vitamin D and iron supplements together, but you should avoid combining them with supplements that ...

Experts explain its impact on longevity. Certain vitamins and supplements claim to boost health and longevity. While we’re ...

A comprehensive guide to the silent and often-missed symptoms of Vitamin D deficiency, a common issue for women over 50. This ...

Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new ...

A study from Brazil has found that a small daily dose of vitamin D can help breast cancer treatment work better. The study was done at the Botucatu School of Medicine at São Paulo State University. It ...