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

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

Vitamin D supplementation does not prevent COVID-19 or improve symptoms but it may help lower the risk of long COVID, a ...

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 ...

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

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

In a large, randomized trial, researchers at Mass General Brigham have found that high-dose vitamin D3 did not reduce COVID-19 infection severity, but may impact long COVID outcomes.

Medically reviewed by Lindsey DeSoto, RD Vitamin D is fat-soluble, meaning your body absorbs the vitamin better if you take ...

Vitamin D3 supplementation does not change the 4-week incidence of health care utilization or COVID-19-related outcomes among adults with newly diagnosed COVID-19 but may reduce the risk for long ...

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

Vitamin D is an essential nutrient for your immune system, heart health, and more. However, most Americans don't get enough ...