Tart Cherry Juice for Gout: The 35% Study and the Trial That Failed
Cherry intake was linked to 35% fewer gout attacks in a 633-patient study, then the follow-up RCT found nothing. Both halves of the cherry story.
The cherry-gout story rests on one genuinely impressive study: researchers followed 633 people with gout for a year and found that cherry intake over the preceding two days was associated with a 35% lower risk of a gout attack, and cherries combined with allopurinol with a 75% lower risk, published in Arthritis & Rheumatism. It also rests on a follow-up that cherry marketing never mentions: when the rigorous randomized trial was finally run, tart cherry concentrate did nothing measurable. This site covers gout's weather side with the same honesty; here's the full cherry file, both halves.
The evidence for
The 2012 study's design was clever: each patient served as their own control, comparing the days before their attacks against their own attack-free periods, which cancels out the differences between people. The findings were dose-flavored and consistent: one to four servings of cherries (a serving being roughly half a cup, 10-12 cherries) across two days tracked with 35% lower attack risk; cherry extract showed a similar association; and the combination with allopurinol, the standard urate-lowering drug, showed the striking 75% reduction.
There's mechanism to go with it. Cherries are dense in anthocyanins, pigments with real anti-inflammatory and antioxidant activity, as the Arthritis Foundation explains, and a review of cherry studies found inflammation markers dropped in most trials examined. There's even a urate signal: in a small randomized crossover trial, eight ounces of tart cherry juice daily for four weeks cut serum uric acid by 19% in overweight adults, per Current Developments in Nutrition, though notably in people without gout.
The evidence against, told with equal volume
Observational studies, even elegant ones, can't fully rule out confounding: the 2012 authors themselves called for randomized trials and noted the self-reported online data left room for error. So the field ran one. Fifty people with gout took placebo or one of four doses of tart cherry concentrate for 28 days: no effect on serum urate, urine urate, or flare frequency at any dose, published in Rheumatology, with the original study's own senior researchers among the authors. Twenty-eight days is short for flare counting, and concentrate isn't whole cherries, but a negative is a negative, and this one was run by people rooting for cherries.
Where does that leave the verdict? A promising observational signal, plausible mechanism, and a failed first RCT. Grade: unproven, worth a shrug-and-try for cherry lovers, and absolutely not medication.
The practical calculus
- Never trade allopurinol for juice. The best-case data shows cherries alongside urate-lowering therapy, and the AF notes cherries have never been compared head-to-head with allopurinol. Gout untreated doesn't just hurt; it erodes joints. Medication decisions live with your doctor.
- If you try it, mirror the study: a daily handful of cherries (tart varieties like Montmorency are traditional, though sweet cherries actually measure comparably in anthocyanins) or a glass of juice; the AF's honest phrasing is that it "can't hurt," with one exception below.
- Watch the sugar. Cherries and especially juice carry real fructose, and the gout population heavily overlaps with diabetes and prediabetes, a trade-off the Arthritis Foundation flags explicitly. Whole fruit beats juice on that ledger; unsweetened beats sweetened by a mile.
- Put your money on the proven levers first: urate-lowering therapy taken consistently, hydration (doubly important in gout's hot-weather season), and moderating the established dietary triggers: alcohol, sugary drinks, purine-heavy feasts. Cherries are, at best, the garnish on that plan.
- Run your own n-of-1 honestly. Gout attacks are discrete, memorable events, ideal for tracking. Log attacks and cherry habits (Flare pairs the log with weather and heat, gout's other trigger axis), and after a few months you'll know whether your pattern echoes the 2012 study or the 2020 trial.
FAQ
Do cherries really prevent gout attacks?
Unproven. A strong 633-patient observational study linked cherry intake to 35% fewer attacks, but the follow-up randomized trial found no effect on urate or flares. The signal is real enough to permit trying, not to promise.
How many cherries or how much juice for gout?
The observational benefit appeared with 1-4 servings over two days (a serving ≈ half a cup or 10-12 cherries); the urate-lowering juice trial used 8 oz daily. No optimal dose is established.
Can cherry juice replace allopurinol?
No. The best cherry data showed benefit alongside allopurinol, and the one rigorous cherry-only trial failed. Stopping urate-lowering therapy invites destructive attacks.
Are cherries safe for people with gout and diabetes?
The caution is fructose: juice especially carries sugar loads that matter in the gout-diabetes overlap. Whole, unsweetened fruit in modest amounts is the safer form.
Sources
Zhang et al., Arthritis & Rheumatism 2012 (633-patient case-crossover) · Stamp et al., Rheumatology 2020 (negative RCT) · Martin & Coles, Current Developments in Nutrition 2019 (urate-lowering trial) · Arthritis Foundation — Cherries and Gout · Kelley et al., Nutrients 2018 (cherry health review)
This article is for informational purposes only and is not a substitute for professional medical advice. Never stop or adjust gout medication without your doctor.
