Low to moderate vitamin D doses may reduce MS relapse rates, while high doses show no additional benefit, according to a new meta-analysis.

Adults with a deficiency of vitamin D are at increased risk for developing dry eye disease than those without low levels of the nutrient, a study finds.

Vitamin-D fortified milk, milk alternatives, and orange juice are great sources of vitamin D. Some waters and sports drinks have added vitamin D as well.

A viral claim links common vitamin deficiencies to hidden depression, but what does the science actually show?

Researchers found that vitamin D deficiency increases levels of key inflammatory markers and that getting more vitamin D may ...

Vitamin D has long been known as an essential nutrient for strong bones and teeth, but in recent years it has gained a new reputation as a "longevity" vitamin because of its wide-reaching role ...

These findings suggest that low vitamin D may be connected to more active disease in the gut. However, the study cannot prove that low vitamin D directly causes inflammation. It only shows that the ...

Dietitians say low vitamin D levels can quietly affect bones, muscles and immunity — and the symptoms are often easy to overlook.

The video explains how insufficient vitamin D affects multiple body systems, underscoring relevance as many adults have ...

When the days shorten and the sun sinks low in the sky, that familiar winter slump sets in. There's a fundamental reason for this seasonal fatigue: low levels of vitamin D—the "sunshine vitamin." ...

Winter can sneak into your bones, your mood, and your motivation. One minute you’re thriving, and the next you’re wondering why getting off the couch feels like climbing a mountain in flip-flops. Sure ...