It's essential to get enough vitamin D to keep your immune system strong. But does it matter when exactly you take it?

Add Yahoo as a preferred source to see more of our stories on Google. Now you can’t just squeeze an orange on your face and expect wrinkles to disappear. There are specific types of vitamin C that are ...

How well your vitamin E supplement works can depend on when you take it. Learn the best time to take this popular antioxidant.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When it comes to improving brightness and tone, experts agree that the best vitamin C ferulic-acid serums ...

Johna Burdeos is a family mom, registered dietitian and freelance writer. Having provided nutrition care to many patients with acute and chronic medical conditions over the years, Johna is passionate ...

Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

A prolonged vitamin C deficiency can cause severe and potentially life threatening symptoms. Eating a variety of fruits and vegetables can help maintain optimal levels of this important nutrient.

Vitamin C serums have become a skincare staple for good reason thanks to its versatility and variety of de-aging capabilities. But just like with any skincare product, there’s no one-size-fits-all ...