A few supplements have also been tested for their effect on uric acid levels. Vitamin C has been shown to lower uric acid, but most of the research looked at uric acid (often in response to exercise) among people who didn't have gout.
Tart cherry juice may lower uric acid levels in some people without gout, but it had no effect on uric acid levels or gout flares in a study of people with gout.[1]