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

The advice to avoid organ meats if you have gout is so common it's become gospel. Organ meats, the thinking goes, are packed with purines. Purines break down into uric acid. Uric acid triggers gout attacks. Therefore avoid organs. But the science is messier than that. Some organs are actually fine. Others genuinely do push purine levels high. Here's what you actually 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.