I discovered some resources online that will help, which include CatInfo.org's food chart and Tanya's FelineCRF.org food lists. Even so, whilst very beneficial and wonderful, I discovered these lists were not exactly up-to-date, and many of the foods cited as minimal phosphorous on These lists weren't under 0. sidneykitty mentioned: https://davidr752lqt5.evawiki.com/user