Scientists compared vitamin D2 and D3 supplements in new studies. Results show D3 may boost immunity more than D2.

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin D2 supplements may lower blood levels of vitamin D3, which ...

According to the National Institutes of Health (NIH), the recommended intake of vitamin D for healthy adults is 600 to 800 IU ...

Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The supplement aisle can be chaotic — an endless wall of brands and formulations to supposedly support ...

Each day I look forward to receiving emails from readers and they usually fall into roughly three categories: kind words regarding a column; a question that may address a recent topic, or it could be ...

Vitamin D is an essential nutrient in the human body and plays a major role in maintaining cognitive function, immune health and bone health. Even if you are not vitamin D-deficient, you may not be ...

A study investigating the impact of vitamin D on gene expression has found significant differences between vitamin D2 and vitamin D3 supplements. The findings, published in the journal Frontiers in ...

Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new ...

You may know vitamin D as an essential nutrient that helps you absorb calcium and keep bones strong, but vitamin D is actually a category that includes several different chemical compounds. The most ...