More than 40 percent of the U.S. population is estimated to have a vitamin D deficiency, especially in regions with less year-round sun exposure. The vitamin, which is vital for the body’s absorption ...

Which vitamin D supplements are best? There is nothing quite like enjoying some fun in the sun to provide your body with some much-needed vitamin D. If you cannot be out in the sun, have a milk ...

Learn how lower vitamin D levels in winter can affect your calcium balance, why it matters for bone health, and what you can ...

If the best vitamin D supplements aren't already part of your daily supplement stack, there’s a decent chance they should be. Given the challenge of getting enough sun (if any) in the UK, the NHS ...

Various studies prove an association between severe vitamin D deficiency and bad COVID-19 outcomes. Other studies show Vitamin D plays a crucial role in immune function and inflammation. Recent data ...

Nearly a quarter of Americans are estimated to have a vitamin D deficiency. Why is that?

Researchers are still trying to understand why some people develop Long COVID: lasting symptoms of the disease that can ...

Dear Dr. Roach: Several years ago, in my early 80s, my gynecologist told me (like all women who mainly stayed indoors) that I should be taking 4,000 IU of vitamin D3 daily. Yet today, I read an ...

Vitamin D is an essential nutrient for your immune system, heart health, and more. However, most Americans don't get enough ...

As a dietitian and firm believer in the benefits of vitamin D, I've been supplementing for nearly a decade to keep my levels in check. To help you make informed choices, I tested 17 vitamin D ...