Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Vitamin D3 is more effective than D2 in maintaining vitamin D levels.Vitamin D supports bone health, immunity, and mood regulation.Both D2 and ...

As we age, our bodies make less vitamin D from sunlight. Learn why this nutrient is crucial for strong bones and fall ...

Vitamin D2 and D3 are the two main forms of vitamin D. Vitamin D2 is present in plants and yeast, while D3 comes from animal sources. Vitamin D is essential for a range of bodily functions such as ...

Editor's Note: This is an excerpt from WBUR's weekly health newsletter, CommonHealth. If you like what you read and want it in your inbox, sign up here. I have a lot of questions about vitamin D. Our ...

What is vitamin D3? Your body creates this vitamin naturally when exposed to sunlight. In the winter, however, we tend to stay inside more, making it harder to get the proper amount of D3. There are a ...

Vitamin D helps your body absorb calcium, and it supports immune function. Fatty fish are among the best natural food sources ...

Higher doses of vitamin D3 supplementation did not significantly reduce cardiac biomarkers in older adults with low serum vitamin D levels. The STURDY trial found no significant differences in ...

Taking vitamin D and omega-3 together may offer added benefits for your brain, heart, and bones. Learn what research shows.