It’s the most popular supplement on the market. But why do we need vitamin D—and why is the advice on how to get it so contradictory? Sunlight is all our bodies need to make vitamin D—a ...

For decades, medical science has operated under the assumption that people with darker skin simply need more sun exposure to produce adequate vitamin D. This oversimplified understanding has led ...

Vitamin D might be doing more than just supporting bone health — it could also help the body age slower, according to a new study led by researchers at Mass General Brigham (MGB) and the Medical ...

If vitamin D deficiency is contributing to your hair loss, it’s possible that increasing your vitamin D intake may help. However, research into the use of vitamin D to treat hair loss is limited .

Vitamin D helps maintain bone health and is found in certain foods, supplements, and sunlight when it interacts with the skin. Cholesterol is a fatty substance found in cells that helps make ...

Struggling with weak teeth or frequent dental issues? The solution might be simpler than you think — vitamin D. This essential nutrient plays a pivotal role in supporting your dental health by ...

Vitamin B complex, encompassing eight essential vitamins including B12, offers comprehensive benefits for energy, brain function, and metabolism. While B complex is suitable for overall well-being ...

Stage One. In the first stage of the Schilling test, a person swallowed radiolabeled vitamin B12A (vitamin B12 joined with a radioactive substance). An hour later, they would receive an injection ...

Vitamin A is an essential nutrient that plays a role in many bodily functions. The fat-soluble vitamin is important for our vision, skin, immune system and more. Also known as retinol, vitamin A ...

Sherry lists fatty fish such as salmon as a prime source of vitamin D-rich food. According to the US Department of Agriculture, three ounces of salmon can contain anywhere from 383 to 570 ...

B vitamins do a lot in the body, including helping to support your energy levels. But the B vitamin complex is large, and some of these vitamins, like B12, get more attention than others.