Foods from USDA-classified categories commonly recommended for kidney-stone prevention. Oxalate content is not in the USDA panel — classification is proxy-based via food category and published low-oxalate references.
Foods are sorted lowest-first by oxalates content per 100g, then cross-referenced with their overall FoodScore so you can see nutritional quality at a glance. Thresholds come from the FoodScore methodology grounded in USDA FoodData Central and the FDA 2016 Nutrition Facts rule.