If you have gout, the most important things to avoid are organ meats, certain seafood, beer, and sugary drinks sweetened with fructose. These are the triggers most strongly linked to rising uric acid levels and painful flare-ups. But the full list goes beyond food. Some common medications, dehydration, and even rapid weight loss can set off an attack. Here’s what to watch for and why each trigger matters.
High-Purine Meats and Seafood
Purines are compounds found naturally in many foods. Your body breaks them down into uric acid, and when uric acid builds up faster than your kidneys can clear it, crystals form in your joints. Animal-based purines are the biggest dietary culprit.
Organ meats top the list. Liver, kidney, and heart are exceptionally high in purines. Among seafood, shellfish like lobster, crab, shrimp, scallops, and mussels are significant triggers. So are sardines, anchovies, herring, haddock, codfish, and trout. A large study on gout patients found that people in the highest fifth of animal-purine intake had roughly 2.4 times the odds of a recurrent flare compared to those eating the least.
You don’t necessarily need to eliminate all meat and fish. Chicken, salmon, and other moderate-purine options are generally tolerable in reasonable portions. The goal is to cut out the highest-purine sources and keep overall intake from animal proteins in check.
Plant Purines Are a Different Story
You may have heard that spinach, asparagus, mushrooms, and cauliflower are “high-purine vegetables” to avoid. The data tells a more nuanced story. In the same study that found a strong link between animal purines and flares, plant-source purines showed a much weaker association. People eating the most plant purines had only about 1.4 times the odds of a flare, compared to nearly five times the odds for people with the highest total purine intake overall. The risk from plant purines is real but modest, and most gout management guidelines do not recommend restricting vegetables. The fiber, vitamins, and other compounds in these foods offer benefits that likely outweigh the small purine contribution.
Beer and Spirits
Alcohol affects gout through multiple pathways. It increases uric acid production, slows its excretion through the kidneys, and contributes to dehydration, all of which raise your risk of a flare.
Not all alcohol is equally problematic. Beer is the worst offender because it contains purines from the brewing process on top of alcohol’s other effects. Spirits also promote gout risk at any dose. A dose-response analysis published in The Journal of Rheumatology found that beer, champagne combined with white wine, and spirits all increased gout risk even at light drinking levels. Interestingly, light red wine and fortified wine showed a slight protective effect in the same analysis, though this doesn’t mean wine is safe in large amounts. If you’re prone to flares, minimizing or eliminating alcohol, especially beer and liquor, is one of the most effective changes you can make.
Fructose and Sugary Drinks
This is the trigger many people miss. Fructose, the sugar found in sodas, fruit juices, candy, and anything sweetened with high-fructose corn syrup, drives uric acid production through a mechanism completely separate from purines. When your liver processes fructose, it burns through its energy stores (ATP) so rapidly that the leftover molecules get broken down into uric acid. Unlike glucose, fructose metabolism is essentially unregulated: your liver processes it as fast as it arrives, depleting energy stores and flooding your system with uric acid byproducts.
Research in Frontiers in Nutrition showed that fructose also activates a pathway that ramps up the creation of entirely new purines in the liver, compounding the problem. This means a can of regular soda can spike your uric acid even though it contains zero purines. Diet sodas, while not ideal for other reasons, do not carry this same gout risk. Whole fruit contains fructose too, but in much smaller amounts and paired with fiber that slows absorption, so it’s generally not a concern in normal quantities.
Medications That Raise Uric Acid
Certain common medications can quietly push your uric acid levels up, sometimes enough to trigger a flare. If you take any of these, it’s worth discussing alternatives with your prescriber.
- Diuretics (water pills): Loop diuretics and thiazide diuretics are among the most important drug-related causes of elevated uric acid. They compete with uric acid for the same transport pathway in the kidneys, reducing how much uric acid gets excreted. They also cause fluid loss, which concentrates uric acid in the blood. The increase can range from 6 to 21% above baseline and may appear within days of starting the medication.
- Low-dose aspirin: At doses of 325 mg per day or less (the typical “baby aspirin” range), aspirin actually reduces uric acid excretion. A large study found that low-dose aspirin was associated with a higher risk of recurrent gout attacks, and the risk increased as the dose decreased. Higher doses of aspirin have the opposite effect, but those carry their own risks and aren’t used for gout management.
If you take a diuretic for blood pressure and also a daily low-dose aspirin for heart protection, the combination can amplify uric acid retention. This doesn’t mean you should stop either medication on your own, but it’s a conversation worth having, especially if your flares are becoming more frequent.
Dehydration and Crash Dieting
When you’re dehydrated, your blood volume drops and uric acid becomes more concentrated. This makes it easier for crystals to form in your joints. Staying well-hydrated, particularly during hot weather, exercise, or illness, is a simple and effective way to keep uric acid diluted and moving through your kidneys.
Rapid weight loss and crash dieting can also trigger flares. When your body breaks down tissue quickly, it releases stored purines into the bloodstream all at once. Gradual, steady weight loss is protective. Studies show that losing weight over time reduces the frequency of gout attacks, but the process of getting there matters. Fasting and very low-calorie diets are common flare triggers that catch people off guard.
Foods and Drinks That Help
Knowing what to avoid is more useful when paired with what actually helps. Low-fat dairy stands out in the research. The proteins in milk promote the excretion of uric acid through urine, and studies show that regular consumption of low-fat milk and dairy products reduces both uric acid levels and the risk of attacks. Coffee (regular, not decaf) has also shown a consistent association with lower uric acid levels in observational studies.
Cherries get a lot of attention in gout circles, and there is some evidence supporting their anti-inflammatory effects during flares. Water remains the simplest intervention. Aiming for enough fluid to keep your urine pale yellow helps your kidneys clear uric acid efficiently throughout the day.
Vitamin C Is Not a Substitute
Vitamin C supplements are frequently recommended in online gout advice, but the evidence is thin. A large study published in Frontiers in Immunology found no meaningful association between vitamin C supplementation and gout risk, with a near-zero effect size. One earlier study in male physicians showed a modest reduction in new gout diagnoses at 500 mg per day, but follow-up research found no significant impact on actual uric acid levels. Serum vitamin C levels plateau at an intake of about 200 mg per day, meaning megadoses don’t translate to higher blood levels. Eating fruits and vegetables rich in vitamin C is reasonable, but popping high-dose supplements won’t replace effective uric acid management.
Putting It Together
The American College of Rheumatology notes that dietary changes alone produce limited reductions in uric acid. The typical target for people with gout is a serum urate level of 6 mg/dL or less, and diet alone rarely gets someone there. That said, the combination of avoiding the biggest triggers (organ meats, shellfish, beer, sugary drinks) while staying hydrated and maintaining a healthy weight meaningfully reduces flare frequency and can make medication work more effectively. The goal isn’t perfection. It’s knowing which triggers pack the biggest punch so you can make the changes that matter most.