Cat Food Composition chart: http://www.catinfo.org/docs/Food Chart Public 9-22-12.pdf Phosphorus in ascending order of mg/100 kcal: http://www.catinfo.org/docs/Food Chart Phosphorus 9-22-12.pdf Sweet Binky has tossed the baton to Robbie and he's probably laughing at him now saying..."see?!? I told you these food charts are A LOT of work!!" For the past many months... taking up hundreds of hours of time....with a boatload of frustration....I have called + emailed ~40 pet food companies to get TNA ('typical nutrient analysis') figures for cat foods. I also had not worked much with spreadsheets and formulas so that was also a struggle. THANK YOU, Janet, for your help in that area. I'd still be working on this if not for your expertise. Since I learned from the best (Janet) I, of course, would not use GA (guaranteed analysis) figures since they are only minimums and maximums which are inaccurate and misleading. Many companies required 5-6 phone calls....many emails.....and sometimes a lot of 'foot stomping'.... to get any usable information from them. For those companies that pulled out the "that information is proprietary" card? They ended up on the 'uncooperative' list at the bottom. Only 3 companies are on that list: Blue Buffalo By Nature Stella & Chewy's Mars (Sheba and Whiskas) company was concerned that the data would become outdated and so they require consumers to call them for data. Now...I don't know if they will give only GA or if they will provide TNA but, again, GA is not acceptable as far as I am concerned. Note that when I discussed carb content with the Blue Buffalo customer service rep, I learned that all of their diets are unsuitably high in carbs except for the Wilderness Pates (Kitten, Chicken, Turkey, Duck, and Salmon). The Wilderness Wild Delights are high in carbs. But that said, I will not patronize any company that refuses to provide TNA data. There are far too many other choices on the market from companies that show more respect for consumers. Wilderness may be low in carbs but without protein and fat data, we are still in the dark. Keep in mind: Grain-free does not necessarily mean low carb. Peas, potatoes, etc., create very high carb diets but are not "grains".