Why these rank worst
Three things push a food up this list, and none of them is the raw purine number on its own:
- Animal-source purines. Purines from organ meats, meat, and seafood raise uric acid far more than the same amount from plants. (Choi et al. 2004, NEJM)
- A heavy real serving. We score the portion you actually eat, not an abstract 100 g, so dense, high-purine servings rank higher. See how we grade.
- Triggers on top. Alcohol and added fructose raise uric acid through their own routes, independent of purines. (Choi 2004, Lancet, Choi & Curhan 2008, BMJ)