Some supplements work better when you take them at certain times. Learn more about how to maximize the effectiveness of iron, ...

In the ABCs of vitamins, D is one of the most important. It helps the body absorb calcium, a mineral that's crucial to build and maintain healthy bones. Vitamin D also has anti-inflammatory and ...

Vitamin D alone may not be enough for bone health. Nutritionists explain why magnesium is essential to activate vitamin D and ...

Everyday Health independently vets all recommended products. If you purchase a featured product, we may be compensated. Learn why you can trust us. Adding vitamin D supplements to your diet can help ...

Vitamin D3, a form of vitamin D that we get from certain foods and exposure to sunlight, is an essential nutrient that plays a role in many bodily functions. This fat-soluble vitamin helps the body ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Most adults can safely take vitamin D supplements every day.  Vitamin D helps keep bones strong and supports the immune system. Vitamin D is ...

In the ABCs of vitamins, D is one of the most important. The body needs vitamin D to build healthy bones, absorb calcium and ...