A handful of supplements show genuine promise for lowering uric acid or reducing gout flares, but the evidence varies widely from one to the next. Vitamin C and tart cherry extract have the strongest research behind them, while others like quercetin, curcumin, and celery seed extract offer encouraging but more preliminary support. Here’s what the science actually shows for each one.
Vitamin C
Vitamin C is the most studied supplement for gout, and the data is straightforward: it helps your kidneys flush out uric acid more efficiently. In a randomized, placebo-controlled trial of 184 people, taking just 500 mg of vitamin C daily for two months lowered serum uric acid by 0.5 mg/dL compared to placebo. That’s a modest but meaningful drop, especially as a long-term strategy alongside other treatments.
Higher doses produce larger effects. In older clinical studies, 8 grams per day for three to seven days reduced uric acid by 2.0 to 3.1 mg/dL. However, doses that high come with real tradeoffs. Your body converts excess vitamin C into oxalate, which can form kidney stones. Men appear particularly susceptible to this risk at high intakes. For most people, 500 mg per day strikes a reasonable balance between benefit and safety.
One important caveat: the 2020 American College of Rheumatology guidelines conditionally recommend against adding vitamin C supplementation for gout patients. The reasoning isn’t that vitamin C doesn’t work at all, but that the uric acid reduction at safe doses is relatively small compared to prescription medications. If your uric acid is only slightly elevated, vitamin C might make a noticeable difference. If you need a large reduction, it’s unlikely to get you there on its own.
Tart Cherry Extract
Tart cherry is arguably the most popular natural remedy for gout, and there’s real data to back up the reputation. A study published in Arthritis & Rheumatism tracked over 600 gout patients and found that cherry extract intake was associated with a 45% lower risk of recurrent gout attacks. Cherries contain anthocyanins, the pigments responsible for their deep red color, which have strong anti-inflammatory properties and may also help lower uric acid levels.
The research on cherries is mostly observational, meaning it tracks patterns rather than testing cause and effect in a controlled setting. The ACR acknowledged the cherry data but noted the evidence quality was too low to make a formal recommendation either for or against it. Still, a 45% reduction in flare risk is hard to ignore, and tart cherry extract is widely considered safe. Most supplements provide the equivalent of about two servings of cherries per day, typically as capsules or concentrated juice.
Quercetin
Quercetin is a plant compound found in onions, apples, berries, and tea. It works by blocking the same enzyme that prescription gout medications target: xanthine oxidase, which is the enzyme your body uses to produce uric acid. Lab studies show quercetin inhibits this enzyme effectively, reducing both uric acid production and the inflammatory free radicals generated alongside it.
The limitation is that most quercetin research has been conducted in test tubes and animal models, not large human trials. It’s biologically plausible and the mechanism is well understood, but we don’t yet have strong clinical data showing how much it lowers uric acid in people at typical supplement doses (usually 500 to 1,000 mg per day). It’s also worth noting that quercetin appears naturally in celery seed extract, which may partially explain that supplement’s traditional use for gout.
Curcumin
Curcumin, the active compound in turmeric, is primarily an anti-inflammatory rather than a uric acid reducer. A systematic review of randomized controlled trials found that curcumin improved inflammation and pain levels across several types of arthritis, including gout, at doses ranging from 120 mg to 1,500 mg daily over periods of 4 to 36 weeks. The safety profile was favorable across all included studies.
If your main concern is managing pain and swelling during or between flares, curcumin is a reasonable option to consider. It won’t address the underlying uric acid buildup that causes gout, but it may help take the edge off inflammation. One practical note: curcumin is poorly absorbed on its own. Supplements that include piperine (from black pepper) or use specialized formulations significantly improve absorption.
Celery Seed Extract
Celery seed extract is a traditional remedy for gout that’s starting to accumulate some scientific support, though all of it so far comes from animal studies. In hyperuricemic mice, both the water-based and oil-based extracts of celery seed significantly reduced serum uric acid levels. The mechanism appears to involve mild suppression of xanthine oxidase activity, the same enzyme pathway that quercetin and prescription medications target.
Celery seed contains a mix of flavonoids, fatty acids, and amino acids. Its oil extract includes small amounts of quercetin and naringenin, both of which have independent anti-inflammatory effects. The evidence is promising but preliminary. No human clinical trials have confirmed the uric acid-lowering effects seen in rodents, so treat this one as a reasonable gamble rather than a proven strategy.
Folic Acid and Zinc
Folic acid and zinc have both shown uric acid-lowering effects in animal research. In rats fed a high-purine diet, both supplements significantly reduced uric acid levels through two pathways: suppressing the enzymes involved in uric acid production and promoting uric acid excretion by favorably shifting gut bacteria composition. The dual mechanism is interesting because most interventions only target one side of the equation.
As with celery seed, the main limitation is that this evidence comes from rats, not people. Folic acid and zinc are inexpensive and widely available, and they carry minimal risk at standard doses. But until human trials confirm these effects, it’s hard to predict how much benefit you’d actually see.
What Doesn’t Hold Up
Coffee is often mentioned as protective against gout. While some observational studies have found correlations between coffee drinking and lower gout risk, more rigorous genetic analyses that account for confounding factors found no significant causal relationship between coffee consumption and lower uric acid levels. Coffee may still have some protective effect through other pathways, but the evidence is weaker than commonly claimed.
Bromelain, an enzyme found in pineapple, has general anti-inflammatory properties and is sometimes recommended for gout. The Arthritis Foundation acknowledges its immune-boosting and anti-inflammatory effects, but there’s no specific clinical evidence showing it reduces gout flares or lowers uric acid.
Putting It Together
If you’re looking for a supplement routine to support gout management, the strongest starting points are vitamin C at 500 mg daily and tart cherry extract. Both have human data showing meaningful effects, and both are safe for most people. Curcumin is a reasonable add-on if inflammation and pain are your primary concerns. Quercetin, celery seed, folic acid, and zinc are all biologically plausible but lack the human trial data to recommend with confidence.
No supplement matches the uric acid-lowering power of prescription medications, which can reduce levels by 2 to 6 mg/dL or more. For people with frequent flares or uric acid levels well above the target of 6 mg/dL, supplements work best as a complement to medical treatment, not a replacement. For people with mild or infrequent gout, the combination of dietary changes and targeted supplementation may be enough to keep flares at bay.