Beyond skeletal strength, these two forms of Vitamin D also play important roles in immune function, supporting the body's defenses against illness. They are also integral to maintaining muscle ...

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin D is involved in many bodily functions and plays a vital ...

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 ...

"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 ...

Vitamin D3 (cholecalciferol) is superior to vitamin D2 (ergocalciferol) when it comes to health effects and should be the favoured form for fortified foods and supplements say researchers from the ...

Discover the benefits of each and whether you should take one over the other. There are few nutrients that've been more in the spotlight than vitamin D. Also called the “sunshine vitamin” (since our ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When you decide to spend money on a vitamin or supplement, you want to be sure it delivers. Which is why ...