Are multivitamins really an efficient way to get all the nutrients you need? We asked a dietitian to find out.

If you've recently started taking a new vitamin or supplement, you might wonder how long it takes for vitamins to work or when you’ll notice a difference. The answer depends on several factors, ...

The ConsumerLab.com analysis also found that few gummies contain iron, which has a metallic taste that’s difficult to mask. This is especially worth highlighting for pregnant women, who are often ...

SEATTLE — As Pacific Northwesterners go deeper into the "big dark," some may wonder about their vitamin D levels. "It's so unique because it's the one vitamin that we actually get from the sun, ...

Vitamin D supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent supplementation to sustain results.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Does anyone actually like taking vitamins? You either have to chew up a gummy that is almost like candy ...

People who don’t get enough vitamin B12 through their diets may need a supplement to fill the gap. Here’s how much to take.

Biotin, also known as vitamin H, can be found in tiny amounts in various foods, such as bananas, egg yolks and nuts. The vitamin helps maintain the health of the skin, hair, eyes, liver and nervous ...

Hair Vitamins and Supplements: What Are They and Do They Work? This article was reviewed by Addie Ganik, MD, FAAD. If you got a dollar for every time a celebrity promoted hair supplements, you’d be ...