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

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 ...

Vitamin D supplements are widely used around the world, but health experts say it’s important to understand how daily intake can affect the body over time.

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

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

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.

Online chatter claims that vitamin D should always be taken with vitamin K2 because it directs where vitamin D goes in the body.

“Egg yolks are one of the few natural sources of vitamin D, and because vitamin D is fat-soluble, pairing eggs with healthy ...