Medically reviewed by Patricia Mikula, PharmD Key Takeaways Tablets contain the most accurate dose of vitamin C and are the ...

A study found no link between vitamin C supplementation and prostate cancer risk. Pending future research, patients should avoid taking more than 120 mg per day. CHICAGO—New study findings presented ...

Conditions that vitamin C may help with include the common cold, anemia, high blood pressure, gout, and several others, research suggests.

The relationship between vitamin C dosage and its effects on the duration of the common cold symptoms may extend to 6-8 grams per day. Dozens of animal studies using different animal species have ...

Q: I’ve been taking vitamin C for years to keep from getting a winter cold, and I think that it does help. A friend of mine thinks that it doesn’t really work and it’s “all in my head”. What do you ...

Medically reviewed by Mary Choy, PharmD Key Takeaways High doses of vitamin C, especially above the tolerable upper limit of 2,000 mg per day, can lead to serious side effects such as kidney stones, ...

While many believe high-dose Vitamin C is harmless, excessive intake can harm kidneys by converting to oxalate, potentially causing stones and failure ...

You don't have to rely solely on foods to meet your vitamin C needs. Several drinks, like grapefruit juice, smoothies, and ...

I’ve heard that vitamin C might be an alternative cancer treatment. What can you tell me about it? Answers from Timothy J. Moynihan, M.D. Interest in using very high doses of vitamin C as a cancer ...

Got a cold? Many of us do at this time of the year. Vitamin C (also called ascorbic acid) is often touted as a method preventing a cold.It has also been promoted in the prevention and treatment of ...

A 74-year-old white woman presents to an emergency department in Flint, Michigan, after suffering with low-grade fever, dry cough, and shortness of breath for the previous 2 days. Her medical history ...