High-dose vitamin C causes digestive distress in most people, including diarrhea, nausea, abdominal cramps, and bloating. These aren’t minor side effects—they’re signs that your digestive ...

Is this intravenous infusion of Vitamin C truly the miracle solution that it is being deemed or is it just another wellness ...

A University of Iowa Health Care randomized, phase 2 clinical trial shows that adding high-dose, intravenous (IV) vitamin C to chemotherapy doubles the overall survival of patients with late-stage ...

High-dose vitamin C can cause false negative results on fecal occult blood tests, potentially masking gastrointestinal bleeding that might indicate colorectal cancer or other serious conditions.

Supplements are part of the daily routine for over half of adults in the United States. However, they aren't regulated in ...

Vitamin C is an immune-boosting superhero. It’s also a nutrient that the body doesn’t make (unlike vitamin D), so you need to get it from your diet or a supplement. Besides bolstering the immune ...

High doses of vitamin C, particularly those above 2,000 mg daily, may increase the risk of kidney stones in susceptible individuals. Vitamin C is metabolized into oxalate, which can contribute to ...

Which fruits are high in vitamin C? ... The safe upper limit is 2,000 milligrams a day, though the nutrient doesn’t cause serious problems even at high doses, the NIH notes.