Izzy is in the later stages of renal failure. She has had CKD for 4 years now I think? I do some crazy things but here goes what I Have been doing.
Originally I fed FF Classics without any binders. We did this up until this last few months. Her numbers are getting high

LIke I said..late stage now.
I rotate in various foods. Still use the FF Classics and now add in the Friskies Special Diet. With those I add Aluminum Hydroxide Powdered for help bind the Phosphorus.
To make sure she eats her Zobaline, Miralax, Jarrows B and her evening high blood pressure pill...I make up the a concoction (using a baby spoon as a measure)....
2 dollups of babyfood squash, 2 heaping dollups of baby food, 1/8 tsp of Miralax, dash spoon of sprirulina, dash spoon of Jarrow B, .75 pill of zobaline, 1/3 of capfull of Gentle Digest probiotic. 1/2 dash of taurine powder and a dash spoon of Lysine. 2 dash spoons of aluminum hydroxide) Evenings only I add that BP pill.
I put this in a syringe and warm it up in a bowl of water. She eats this first (I insist she must eat at leat 1/2 of it) before I give her the regular FF or Friskies. If she only eats 1/2 syring I put the rest in her food and mix it in.
Whew...Now for her FF or Friskies...I add another 1/8 tsp of Miralax (ok but she had constipation issues) and 1/8 tsp aluminum hydroxide, quite a bit of water and I have started sprinkling a little FortiFlora.
Plus I now give 100ml sub q fluids daily....along with her insulin shots. :shock:
Just call me crazy

If you are interested in her renal numbers...its page 2 of her FDMB SS.