I found a couple of sources online to assist, such as CatInfo.org's food chart and Tanya's FelineCRF.org food lists. Nevertheless, while pretty useful and excellent, I discovered these lists were not specifically up to date, and some of the foods cited as very low phosphorous on People lists were not https://chancenfwra.suomiblog.com/the-definitive-guide-to-petfood-51698545