Vitamin D deficiency is highly prevalent in the US and around the world. Roughly 15.4% of children and adolescents in the US were vitamin D deficient in 2017. While vitamin D deficiency has slightly ...

Vitamin A supports healthy eyes, skin, immune function, and more. Who needs a supplement? Experts discuss the benefits, risks ...

Below, we walk you through everything you need to know about vitamin D and how to get your levels in the proper place.

Vitamin C boosts immunity, skin health, and iron absorption. Discover top food sources, daily needs, and signs of deficiency ...

While you can take certain supplements any time of the day, others need a little more careful planning. As a vitamin most Americans don’t get enough of, figuring out the best time to take vitamin D is ...