Researchers are still trying to understand why some people develop Long COVID: lasting symptoms of the disease that can ...

Vitamin D is a fat-soluble vitamin and supplement that supports bone health and the immune system. Supplements like magnesium ...

In a large, randomized trial, researchers at Mass General Brigham found that high-dose vitamin D3 did not reduce COVID-19 ...

Vitamin D3 supplementation does not change the four-week incidence of health care utilization or COVID-19-related outcomes ...

Taking vitamin C and D together boosts your immune system and supports bone health. Both vitamins may enhance wound healing and prevent infections.

Vitamin D didn’t blunt COVID’s initial impact—but it may hold a surprising clue in the fight against long COVID.

Research has associated GLP-1 medications with vitamin D deficiencies, highlighting the importance of nutrition counseling ...

High-dose Vitamin D doesn't reduce acute COVID severity but shows a promising signal for reducing Long COVID and brain fog.

Here’s what vitamin D3 is and why your body needs it.

Plus, how to up your intake.

Low vitamin D levels may affect your sex drive by influencing hormones, mood, energy, and blood flow. Learn how vitamin D deficiency affects libido and whether supplements can help.

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 ...