While vitamin C is essential for health, high doses can cause serious side effects. Learn the risks and how to use it safely, ...

Medically reviewed by Kristie Reed, PharmD Vitamin C can help increase the absorption of iron from plant-based sources and ...

It may take a sniffly nose, constant sneezing or a pesky cough to bring vitamin C top-of-mind. Getting sick reminds you of your immune function, which may leave you wondering whether you should take ...

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.

Medically reviewed by Karina Tolentino, RD Key Takeaways Zinc and vitamin C work better together to support immune ...

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.

It turns out, you can have too much of a good thing. While a huge swath of Americans are deficient in essential vitamins and minerals like potassium, calcium, and vitamin E, fewer are lacking ones ...

When cold strikes in, vitamin C becomes a go-to supplement for many. Some start loading up oranges, some turn towards ...

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

Vitamin C is necessary for a healthy immune system, joints and disease prevention. The average adult needs 75 mg to 90 mg per day. Vitamin C is found in citrus fruits, bell peppers and cruciferous ...