Vitamin C toxicity is rare, but daily doses over 2,000 milligrams may cause unpleasant side effects like digestive issues, headache, and skin flushing.

Taking Vitamin C and calcium together improves gut calcium absorption and may also enhance bone and immune system health.

Here are four practical ways to boost vitamin C in your diet: Eat more citrus fruits: Oranges, grapefruits, tangerines and ...

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It's true that vitamin C can give your immune system a boost, but when it comes to treating or preventing colds, things get a ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Vitamin C supports immune function and collagen production, but excess amounts are quickly excreted.Most adults can meet their daily vitamin ...

Some of the best vitamin C supplements come from brands such as Thorne, Mindbodygreen, and more. Learn about the benefits of vitamin C supplements and the best options to choose from here. Share on ...

Food sources high in vitamin C — a key vitamin for your health — include citrus fruits, certain types of cherries and peppers, and fresh parsley. Additionally, vitamin C is vital for connective tissue ...

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.

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Vitamin C and vitamin D both support immune function in ...