Vitamin C Does Not Lower Uric Acid Levels in Patients with Gout.

Vitamin C does not reduce uric acid levels to a clinically significant degree in patients with established gout. Of 40 patients, 20 taking allopurinol (which inhibits uric acid production) were given 500 mg of vitamin C daily or increased doses of allopurinol, while another 20 patients were either started on allopurinol or vitamin C. Taking vitamin C for 8 weeks did not lower uric acid levels. The Arthritis & Rheumatism results differ from previous research that found that vitamin C reduced uric acid levels in healthy individuals who did not have gout but had elevated levels of uric acid.