New study reveals vitamin D supplements may reduce long COVID risk by 4%. Promising results for symptoms like fatigue and ...

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

A major clinical trial has delivered an unexpected twist in the search for ways to fight COVID-19 and its lingering effects. Researchers at Mass General Brigham found that taking high doses of vitamin ...

Plus, how to up your intake.

Supplementation does not change four-week cumulative incidence of health care utilization among adults with newly diagnosed COVID-19.

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

Medically reviewed by Lindsay Cook, PharmD Key Takeaways About 14% of people developed a vitamin D deficiency after one year ...

A new study casts doubt on the widespread use of high-dose vitamin D supplements, suggesting that the pills do not actually prevent bone fractures in healthy adults without vitamin D deficiencies.

I am confused about vitamin D. I have been taking it for years, along with calcium, to protect my bones. Recently, I read that there is no evidence it works and that too much could be harmful. Can you ...

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