Vitamin D2 comes from plants, while vitamin D3 comes from animals and sunlight. Research has shown that D3 raises your blood levels more efficiently.

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 D is one of the most essential nutrients that is required for ensuring optimal function of the body. Its health benefits range from bettering bone health to muscular function and mas and ...

"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 ...