Tuna is high in uric acid. Just don't eat too much of it to jolt the uric acid level to trigger gout.
Uric acid (ua) content of some foods per 100 grams are: tuna-260 mg, sardines in oil-480; liver (beef)-550; beef-130; chicken-120, pork-140; apple-15, banana-60, broccoli-80, spinach-60, kale-50, asparagus-25, cabbage 22, potato-16, lettuce-13, tomato-11, cherry (sweet)-7, bread-14; beer-8~13.
There are other food and drink that contains no ua but can raise the blood ua level, e.G., alcohol, fructose, acidic foods and drinks, etc.