Curious how elderberry supplements affects blood sugar and the immune system? Learn what current research shows—plus safety ...

Foods that support immune health, like citrus fruits, fatty fish, and leafy greens, contain immune-boosting nutrients like zinc and vitamins C, D, and E.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Really, one of the best ways to keep your immune system healthy is also one of the simplest: by ...

Plant-based foods deliver vitamin A through carotenoids, especially beta-carotene. Orange-hued produce such as carrots, ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Really, one of the best ways to keep your immune system healthy is also one of the simplest: by ...

Fruits are one of the most natural ways to increase vitamin C intake and support immune health. Learn more about which fruits pack the most vitamin C.

Vitamins D and C both play important roles in immune health, but will either prevent you from getting sick? Here's what experts want you to know.

Vitamins and supplements can offer certain health benefits for some people — but unfortunately, buzzwords, false claims, and a lack of regulation often make it difficult to find an option that's ...

Recent immunology research has unveiled the complex relationship between vitamin D and immune system function. This vital nutrient is involved in the development and function of the immune system, ...

For years, orange juice has been sold as a simple source of vitamin C, but new human data suggest that a morning glass may be ...