Sunlight and diet provide most of our vitamin D, but in modern life, many people struggle to maintain optimal levels. Whether ...

“However, we discovered that vitamin D2 supplements can actually decrease levels of vitamin D3 in the body, which is a ...

Researchers examined data from controlled trials and found that taking vitamin D2 led to a reduction in vitamin D3 levels, in ...

Researchers from the University of Surrey in the UK found that taking vitamin D2 can cause reduced levels of vitamin D3 in ...

That’s because our body doesn’t make enough of the stuff in the darker months as sunlight decreases. Vitamin D is key to ...

"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 ...

A recent UK research shows vitamin D2 supplements may lower the body’s levels of vitamin D3, the form most vital for immunity ...

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 ...

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 ...

Oral vitamin D supplementation nearly halved the rates of suicide and intentional self-harm in a study of US veterans, with an even stronger effect among Black veterans. The retrospective cohort study ...