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

Taking a vitamin D supplement with foods rich in healthy fats, like fatty fish, avocado, and olive oil, may help your body ...

Vitamin-D fortified milk, milk alternatives, and orange juice are great sources of vitamin D. Some waters and sports drinks have added vitamin D as well.

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

Per-protocol analyses, however, suggested a nonsignificant trend toward a lower prevalence of long COVID at two months (OR, 0 ...

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 ...

Vitamin D works with calcium to keep bones strong and healthy. It’s also involved in immune and brain function. Only a few ...

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

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 ...

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

Dr Anjali Kumar explains why vitamin D deficiency is extremely common among women and how a simple blood test can help detect ...

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