Is Catfish Bad for Gout? Purines, Fried Catfish and Swaps
Farmed catfish has about 205 mg of purines per 100 g in USDA's newest data, in the very high band. Safe portions, fried catfish, and lower-purine swaps.
TL;DR
- A 2024 USDA analysis puts farmed catfish at about 205 mg of purines per 100 g raw, just into the very high band. A 6-ounce fillet carries about 350 mg.
- Some older gout charts listed catfish at around 85 mg and counted it among the best fish choices. The newest US data doesn’t support that.
- Catfish has very little omega-3, and a fried catfish plate with beer stacks the odds. Small, occasional portions between flares are the way to fit it in.
Catfish is harder on gout than its reputation suggests. In USDA’s newest analysis, farmed catfish has about 205 mg of purines per 100 g, which puts it in the very high band, above tilapia, trout and cod.
That doesn’t mean you can never eat it. It means treating catfish as an occasional food in a small portion, not a safe everyday fish.
How Many Purines Are in Catfish?
The USDA and ODS-NIH Database for the Purine Content of Foods (Release 2, 2025) has one catfish entry: USDA’s own 2024 analysis of raw farmed channel catfish, at about 205 mg of purines per 100 g. Channel catfish is the main farmed catfish in the US, so this is the number that matches what most people buy.
| Catfish portion (raw weight) | Purines |
|---|---|
| 100 g | ~205 mg |
| 3 oz (85 g) | ~175 mg |
| 4 oz (113 g) | ~230 mg |
| 1 whole fillet (about 159 g) | ~325 mg |
| 6 oz (170 g) | ~350 mg |
The fillet weight is from USDA FoodData Central. Our charts use four bands: low (under 50 mg per 100 g), moderate (50–100), high (100–200) and very high (over 200). Catfish sits just over the line into very high, though still well below anchovies (about 355 mg).
These figures are for raw fish. Frying or baking drives off water, so a gram of cooked catfish holds more purines than a gram of raw, but the fillet keeps roughly the same total.
Why Did Catfish Move Up?
Some older gout charts listed catfish at around 85 mg per 100 g and put it on “best fish” lists. Those figures don’t appear in the USDA purine database, whose only catfish value is the 2024 analysis at about 205 mg.
Purine numbers for the same fish vary by lab, method and sample, so small differences are normal. A jump from moderate to very high is not small, though, and it changes the advice. Until other modern analyses say otherwise, the newest US data on the catfish people actually buy is the one to go by.
How Does Catfish Compare With Other Fish?
| Fish (raw) | Purines per 100 g | Per 4 oz (113 g) | Band |
|---|---|---|---|
| Salmon, farmed Atlantic | 250 mg | ~283 mg | Very high |
| Catfish, farmed | 205 mg | ~232 mg | Very high |
| Atlantic mackerel | 200 mg | ~226 mg | High |
| Tilapia, farmed | 185 mg | ~209 mg | High |
| Trout, rainbow | 180 mg | ~203 mg | High |
| Flounder | 115 mg | ~130 mg | High |
| Cod | 105 mg | ~119 mg | High |
| Sea bass | 105 mg | ~119 mg | High |
Catfish now sits in the same range as the oily fish, but without their omega-3. USDA FoodData Central lists raw farmed channel catfish at under 0.1 g of EPA plus DHA per 100 g, against about 2.0 g in farmed Atlantic salmon and 2.3 g in Atlantic mackerel.
That matters because omega-3 content may change how seafood relates to gout. In a 2023 analysis of 12,505 US adults in the NHANES survey, omega-3-poor seafood, a group that included catfish, tilapia, cod and shrimp, was linked to 8.7% higher odds of gout for each extra ounce eaten per day. Omega-3-rich seafood showed no association. It’s a one-time snapshot, so it can’t prove cause, but it’s one more reason not to lean on catfish as a staple.
The broader evidence points the same way. In a 12-year study of 47,150 men, those who ate the most seafood had a 51% higher risk of developing gout than those who ate the least. And a 2012 study that followed 633 people with gout found that the biggest two-day purine intakes were linked to nearly five times the odds of a recurrent attack.
Fried Catfish, Fish Fries and Southern Plates
Catfish is most often eaten fried, and that’s where a moderate meal can turn into a heavy one.
- The coating isn’t the problem. Cornmeal is low in purines. The fish is where nearly all the purines come from.
- Frying adds fat and calories. USDA FoodData Central lists breaded, fried channel catfish at about 229 calories and 13 g of fat per 100 g, against about 119 calories and 6 g of fat for raw farmed catfish. That matters if you’re working on your weight, which the ACR guideline conditionally recommends for people with gout who are overweight.
- Portions run large. A fish-fry platter often holds two or three fillets. At about 325 mg of purines per raw fillet, that’s a very big purine day.
- The sides are mostly fine. Hushpuppies, coleslaw, greens and fries are low in purines. See french fries and gout for the fried-side question.
- The drink matters. Beer is one of the worst pairings for gout (see is beer bad for gout), and the ACR guideline advises limiting alcohol.
How Much Catfish Is Reasonable?
There’s no official limit, so this is a practical starting point:
- Portion: 3 to 4 ounces raw, about half a typical fillet. That’s roughly 175–230 mg of purines.
- Frequency: about once a week at most between flares, then adjust based on how you do.
- One high-purine food that day: no shrimp, second protein or meat gravy alongside it.
- Fill the plate with low-purine foods: greens, slaw, potatoes, rice or cornbread.
- Drink water or unsweetened tea. The ACR guideline also advises limiting high-fructose corn syrup, common in sweetened drinks.
If you log what you eat, an app like Urica can estimate the purines in a catfish plate from a photo and help you see whether fish-fry nights line up with flares.
Catfish During a Flare vs. Between Flares
During a flare, skip catfish entirely, along with other very high-purine foods and alcohol. Eggs, low-fat dairy and tofu are gentler proteins for a few days. Start the treatment your doctor prescribed early: the ACR guideline strongly recommends colchicine, NSAIDs or glucocorticoids as first-line flare treatment. Drink plenty of water unless you’ve been told to limit fluids. Our guide on how to stop a gout flare fast walks through it.
Between flares, a small portion now and then can fit for many people. The American College of Rheumatology’s 2020 guideline conditionally recommends limiting purine intake “regardless of disease activity,” so catfish works best as an occasional dish, not a weekly platter.
How to Cook Catfish for Gout
- Bake, grill or blacken it. A spice crust gives you the flavor without the fryer. These methods don’t add purines, but they don’t remove any either.
- Oven-fry it: a light cornmeal coating and a hot oven get close to the real thing with far less oil.
- Poach it when you’re being cautious. Purines are water-soluble. A 2019 PeerJ study found that boiling moved purines out of marine fish and into the cooking liquid. Channel catfish wasn’t tested, so treat that as a general principle, and discard the liquid rather than serving it as a stew broth.
- Skip sugary glazes and sauces.
Better Swaps for Catfish
| If you want | Try | Purines per 100 g | Why it works |
|---|---|---|---|
| A mild white fillet to fry or bake | Cod | 105 mg | About half the purines |
| A mild fillet with some omega-3 | Sea bass | 105 mg | About 0.6 g of omega-3 per 100 g |
| A thin, flaky fillet | Flounder | 115 mg | Much lower, cooks fast |
| A cheap, convenient protein | Canned salmon | 110 mg (90–135) | About 1 g of omega-3 |
| A meatless plate | Eggs or tofu | ~0 / 25 mg | Low band |
Tilapia (185 mg) and trout (180 mg) are only slightly lower than catfish, so they aren’t real purine swaps.
The Bottom Line
Catfish isn’t the low-purine fish older charts made it out to be. USDA’s 2024 analysis puts farmed catfish at about 205 mg of purines per 100 g, in the very high band, and it has almost no omega-3. You don’t have to give it up, but keep it occasional: 3–4 ounces, no more than about once a week between flares, baked or blackened more often than fried, with water instead of beer. Skip it during a flare, and reach for cod or sea bass when you want a mild white fish with about half the purines.
Sources
- USDA Agricultural Research Service. USDA and ODS-NIH Database for the Purine Content of Foods.
- FitzGerald JD, et al. 2020 American College of Rheumatology Guideline for the Management of Gout. Arthritis Care & Research, 2020.
- Zeng G, et al. n-3 PUFA poor seafood consumption is associated with higher risk of gout, whereas n-3 PUFA rich seafood is not: NHANES 2007–2016. Frontiers in Nutrition, 2023.
- Choi HK, et al. Purine-rich foods, dairy and protein intake, and the risk of gout in men. New England Journal of Medicine, 2004.
- Zhang Y, et al. Purine-rich foods intake and recurrent gout attacks. Annals of the Rheumatic Diseases, 2012.
This article is for informational purposes only and is not medical advice. Talk to your rheumatologist or healthcare provider about your specific situation.
Track Your Personal Response
Everyone responds differently to foods. Urica helps you track how specific foods affect YOUR flare patterns by analyzing purines, fructose, and glycemic load together — not just purines alone.
Frequently Asked Questions
Is fried catfish OK if I have gout?
Occasionally, in a small portion. The cornmeal coating adds few purines, but the fish itself is in the very high band at about 205 mg per 100 g raw, and restaurant plates often hold two or three fillets. Frying also adds fat and calories, and a fish fry often comes with beer. Order one piece, fill the rest of the plate with slaw or greens, and drink water.
Is catfish better than tilapia for gout?
No, slightly worse. In USDA's 2024 analyses, farmed catfish measured about 205 mg of purines per 100 g and farmed tilapia about 185 mg. Both have very little omega-3. If you want a mild white fish with fewer purines, cod or sea bass at about 105 mg per 100 g is the better choice.
Is wild catfish different from farmed catfish for gout?
There's no purine data for wild catfish in the USDA database; the 205 mg figure is for farmed channel catfish, the main catfish farmed in the US. USDA FoodData Central lists more omega-3 in wild channel catfish, about 0.4 g of EPA plus DHA per 100 g versus under 0.1 g in farmed, but that's still low. Treat wild catfish the same way on purines.
How often can I eat catfish if I have gout?
There's no official limit. The American College of Rheumatology advises people with gout to limit purines generally. Given catfish's very high purine content and low omega-3, a sensible starting point between flares is a 3- to 4-ounce portion no more than about once a week, as the only high-purine food that day. Keep a log and adjust based on how you do.