A simple, affordable supplement may be one of the most powerful tools in your anti-aging arsenal—and it’s not the latest ...

Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

A prominent health expert, Dr. Eric Berg, is warning individuals experiencing memory lapses to check their vitamin B12 levels, as a deficiency can trigger symptoms eerily similar to those associated ...

Dear Dr. Roach: I have been diagnosed with vitamin D toxicity, according to the blood work from a month ago — my result was 122 ng/mL. I was taking high doses of vitamin D3 in pill form (15,000 IU a ...

Share on Pinterest According to a recent study, D2 and D3 may have different effects on the body. Marco Furia/EyeEm/Getty Images Researchers recently investigated the genetic effects of the two forms ...

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 ...

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 ...