Plant purines are not animal purines

What the research found

In the landmark cohort of 47,150 men, purines from meat and seafood clearly raised the risk of gout. Purines from vegetables, legumes, and mushrooms did not (Choi et al. 2004, NEJM). A Shanghai study found the same split for high uric acid itself: seafood raised it, while purine-rich vegetables and soy did not (Villegas et al. 2012). The same chemical behaves differently depending on the food it comes in, which is why we weight a food's purines by its source when we grade it.

Two more reasons the raw number misleads

• Per 100 g is not a serving. Spinach reads high per 100 g, but a normal portion is small, so the purines you actually eat are modest.
• Plants bring benefits too. Vegetables, beans, and whole grains are part of the DASH eating pattern, which lowered uric acid in a randomized trial. (Juraschek et al. 2016)