Seafood
Not all seafood is high in purine. Some are higher in purine than other types. Seafood high in purine are anchovies, shellfish, sardines, and tuna. These seafood release uric acid into the body, and when uric acid is higher than 7.0 milligrams per deciliter in the body, it can cause crystals to form and build up around joints which results in this painful form of arthritis called gout. However, consuming a reasonable amount of fish can reduce the risk of having a gout attack. [2]