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.

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 ...

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

Measurements were performed before and after vitamin D3 supplementation as a nonrandomized cross-over study in healthy men and women aged between 18 and 50 years. At baseline, arterial elasticity was ...

The report warns that symptoms of hypervitaminosis D can include: drowsiness; confusion; apathy; psychosis; depression; stupor; coma; anorexia; abdominal pain; vomiting; constipation; peptic ulcers; ...

Despite living in an era of abundant food choices and dietary supplements, vitamin D deficiency remains one of the most widespread nutrient gaps globally.

There are some supplements that you can take whenever and wherever, regardless of the time of day, what you've eaten, or what else you've taken that day. Then there are others that require a bit more ...

A common supplement found on pharmacy shelves nationwide has been shown to drastically reduce the risk of heart attacks. A new study from heart researchers at Intermountain Health in Salt Lake City ...

A viral TikTok trend is claiming that the use of several supplements can help ease anxiety. Anxiety sufferers have tested the effects of magnesium and D3 vitamins to curb their symptoms — and many ...

Long-term daily supplementation with moderate (1600 international units [IU]) or high (3200 IU) doses of vitamin D3 doesn’t reduce the risk for type 2 diabetes (T2D) among generally healthy older ...