Are Organ Meats High in Purines? What Gout Sufferers Need to Know

What purines actually are and why they matter

Purines are nucleotide bases found in all cells, plant and animal. They're part of the DNA and RNA in every living thing. When you digest foods containing purines, your body breaks them down through a metabolic pathway that produces uric acid as a byproduct.¹ Most uric acid is filtered through your kidneys and excreted in urine.

In people with gout, either the kidneys aren't filtering uric acid efficiently, or the body is producing too much of it, or both. Uric acid builds up in the blood and crystallises in joints, particularly the big toe, triggering the intensely painful inflammatory response everyone associates with gout.

The foods that trigger gout are high-purine foods. But here's where the blanket advice breaks down: not all animal foods have the same purine content. Beef has less than a salmon steak. Chicken has less than tuna. And organs vary wildly, sometimes by more than tenfold depending on which organ.

Which organs are genuinely high in purines

Some organs are indeed very high in purines and should be avoided or strictly limited if you have gout. The main offenders are liver and kidneys, particularly beef liver and goose liver. These organs are metabolically active and purine-dense.

Beef liver contains a high concentration of purines per 100 grams compared to muscle meat.² For comparison, beef muscle meat contains around 50 to 100 milligrams per 100 grams. Kidney is even worse, with some sources listing it as high as 300 milligrams per 100 grams. Organ meats from poultry (chicken liver, turkey liver) are similarly high, in the range of 200 to 250 milligrams per 100 grams.

If you suffer from gout, liver and kidneys are reasonable foods to restrict or avoid entirely, especially during acute flare periods. The purine load is simply too high to ignore, particularly if your kidneys already struggle to clear uric acid.

Beef liver is three to four times higher in purines than the muscle meat from the same animal. If you have gout, liver is the organ to eliminate first.

Which organs are surprisingly low

This is where the conversation gets interesting and where most dietary advice fails gout sufferers. Not all organs are purine-dense. Many are actually quite low compared to other animal foods.

Heart, for instance, is relatively low in purines compared to liver.² Beef heart contains around 80 to 120 milligrams per 100 grams. That's actually in the range of muscle meat, not liver. It's barely above chicken. Tongue is similar, roughly 100 to 130 milligrams per 100 grams. These organs are metabolically less active and therefore don't accumulate purines at high levels.

Bone marrow is very low, maybe 20 to 50 milligrams per 100 grams depending on the preparation. It's actually one of the lowest-purine animal foods available. Oxtail is comparable to muscle meat, around 70 to 110 milligrams per 100 grams. Brain is moderate, around 100 to 150 milligrams per 100 grams.

Sweetbreads (thymus gland) do have moderate to high purines, around 200 milligrams per 100 grams, and should probably be limited if you're sensitive. Tripe (stomach lining) is actually quite low, around 50 to 80 milligrams per 100 grams, making it safer than many people assume.

The pattern is clear. Metabolically active organs like liver and kidney are purine-dense. Structural organs and tissues like heart, tongue, and bone marrow are not. If you love organ meats and you have gout, heart and bone marrow are reasonable options. Liver is the one to carefully manage.

Other high-purine foods to worry about first

Before you eliminate organ meats entirely, consider what else you're eating. Some common foods are far higher in purines than many organs.

Seafood, particularly shellfish and oily fish, is notoriously high-purine. Anchovies, sardines, herring, and organ meats from fish are among the highest-purine foods available, often exceeding 300mg per 100g. Shellfish like mussels and scallops are similarly problematic. If you have gout and you're eating seafood regularly, that's far more concerning than moderate organ meat consumption.

Processed meats, the ones made with offal (mechanically separated meat products, some sausages), can be surprisingly high in purines. Yeast-based products and yeast extracts are extremely high. Certain mushrooms, particularly dried shiitake, are surprisingly purine-dense for a vegetable.

Practical guidance for gout sufferers

If you have gout and you want to include organ meats in your diet, here's the practical hierarchy. Heart and tongue are safe to eat regularly, as regularly as you'd eat muscle meat. Bone marrow is excellent for mineral content and extremely low in purines, making it probably your best organ option. Tripe is fine. Sweetbreads should be limited or avoided.

Liver and kidney should be restricted. That doesn't mean never eat them. It means not regularly, and not in large portions. A small 30-50 gram serving of beef liver once per month is unlikely to trigger a gout attack in someone with mild gout. Regular consumption is riskier.

Context also matters enormously. A 100-gram serving of liver combined with adequate hydration, normal carbohydrate intake, and low alcohol consumption is lower-risk than the same serving combined with dehydration and a pint of beer. Gout is multifactorial, and purine content is just one factor among several.

For gout sufferers, organ meats aren't universally problematic. Heart, tongue, bone marrow, and tripe are reasonable choices. Liver and kidneys require caution. The purine difference between them is dramatic and worth knowing.

Context and other gout triggers

It's also worth noting that other foods and lifestyle factors are bigger gout triggers than even liver. Beer and high-fructose beverages are particularly strongly associated with gout risk.³

Dehydration is massive. Gout attacks are far more common in dehydrated individuals. Body weight and insulin resistance matter. Excess alcohol, particularly beer, matters more than any food except seafood. If you're managing gout, optimising those categories first yields more benefit than avoiding all organs blanket-style.

The bottom line

The blanket advice to avoid organ meats with gout is overly simplistic. Some organs are genuinely high in purines and worth limiting. Liver and kidney fall into this category. But heart, tongue, bone marrow, and tripe are actually lower in purines than many other animal foods and are perfectly reasonable to eat regularly.

If you have gout and you love organ meats, prioritise heart and bone marrow. Enjoy liver occasionally in small portions. Skip the kidneys and sweetbreads, or limit them severely. And remember that purine content is just one piece of the gout puzzle. Hydration, body weight, alcohol intake, and overall metabolic health matter just as much.

You don't have to sacrifice the nutrient density of organ meats to manage gout. You just need to know which ones are actually problematic.

References

1. 1. Choi HK et al. Pathogenesis of gout. Ann Intern Med. 2005;143(7):499-516. PMID: 16275798.
2. 2. Kaneko K, Aoyagi Y, Fukuuchi T, Inazawa K, Yamaoka N. Total purine and purine base content of common foodstuffs for facile estimation of purine intake. Biol Pharm Bull. 2014;37(5):709-21. PMID: 24881791.
3. 3. Choi HK, Curhan G. Soft drinks, fructose consumption, and the risk of gout in men: prospective cohort study. BMJ. 2008;336(7639):309-12. PMID: 18244959.