Most cases of gout are probably caused by eating too much fructose in the form of table sugar or high fructose corn syrup.

"Fructose is known to induce uric acid production by increasing ATP degradation to AMP, a uric acid precursor (85, 93, 94) and thus, within minutes after fructose infusion, serum uric acid levels rise (94). Furthermore, de novo purine synthesis is accelerated, further potentiating uric acid production."

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3197219/