If I’m telling the truth, I’ve been outside my apartment maybe three times this week—and that’s a generous estimate. Since I started strictly working from home, I’ve accepted the fact that the inside ...

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin D is involved in many bodily functions and plays a vital ...

Vitamin D deficiency is extremely common, affecting approximately 42 percent of people in the US, according to research published in the National Institutes of Health database. But it's also extremely ...

When it comes to building strong, healthy bones, the emphasis on strength training has never been greater. Staying active is essential for bone health, but it’s important not to neglect the basics: ...

What is vitamin D3? Your body creates this vitamin naturally when exposed to sunlight. In the winter, however, we tend to ...

In nutrition science, certain vitamins and minerals don’t work in isolation, they complement, amplify, or balance each other’s functions within the body. These “nutrient synergies” are increasingly ...

Vitamin D2 is plant-based; vitamin D3 comes from sunlight and animal products. Vitamin D3 may be more effective than D2 at raising vitamin D levels and sustaining them for longer. Vitamin D can be ...

Note: The U.S. Food and Drug Administration (FDA) does not approve supplements for safety or effectiveness. Talk to a healthcare professional about whether a supplement is the right fit for your ...