Vitamin C
Vitamin C is a water-soluble vitamin found in a variety of foods, including citrus fruits, broccoli, and peppers. It is an essential micronutrient for humans, supporting the immune system and helping prevent various diseases. Vitamin C has been studied for its potential protective effect against gout by reducing serum uric acid levels (1).
In a 2009 study by Hyon Choi, MD; Xiang Gao, MD; and Gary Curhan, MD, 46,994 men were followed over a 20-year period (1986–2006) to investigate the relationship between Vitamin C intake and the risk of gout. A total of 1,317 confirmed cases of incident gout were documented. The study found that the relative risk for gout decreased with higher daily Vitamin C intake (<250 mg/day to ≥1,500 mg/day), suggesting that supplemental Vitamin C may help prevent gout (1).
In a 2011 meta-analysis of 13 randomized controlled trials involving 556 participants, a significant reduction in serum uric acid levels was found in those taking 500 mg/day of Vitamin C for 30 days. Hyperuricemia—the primary risk factor for developing gout—results from excessively high serum uric acid levels. Vitamin C continues to be studied as a potential alternative to medications that may carry significant side effects (2).
Although there have been promising results regarding Vitamin C intake as a preventive measure against gout, studies are ongoing. High doses of Vitamin C can cause side effects such as diarrhea, bloating, and kidney stones, particularly in men.
References
- Choi, H., Gao, X., and Curhan, G. Vitamin C Intake and the Risk of Gout in Men – A Prospective Study. Arch Intern Med. 169(5): 502–507. 2009.
- Juraschek, S.P., Miller, E.R., and Gelber, A.C. Effect of Oral Vitamin C Supplementation on Serum Uric Acid: A Meta-analysis of Randomized Controlled Trials. Arthritis Care Res (Hoboken). 63(9): 1295–1306. 2011.