I'm so glad I found this! My brain hurts trying to absorb the past two weeks of information and misinformation gathering. I have 3 kitties. 1st to be diagnosed diabetic tomtom 14yr hefamump big cat only mildly overweight at 21 lbs (he is NOT a petite framed cat) vet said his sugar was almost 800 and showing ketones but didnt really explain. Prozinc 2units every 12 hrs. And swap food to hills multi benefit WD (dry) less than 5 days I realize it's for sure not just him drinking water like a camel and going through litter like mad. Round 2 Newnie.. hes like 6. Long previous history of urinary blockage so bad he had to be castrated to save his life. He too gets 2units 2xs a day his sugar was 400's no ketones. So trying to find food that is safe for them both is a chore. So far I'm now having to give Tomtom medication for diarrhea even though I'm only slowing swapping in the new food as per the schedule set By hills when I called them because their feeding chart only goes to 18lbs ( did I mention Toms a hefalump?) So it's looking like yet again prescription diet is failing us. Same as prescription urinary did. It took me months to stop the crystal issues and I'm terrified of a repeat. Sorry this is long. Anyhow.. point me please where i might explode my head some more on diet i know i have to swap to wet for their health .. it just seaming like mission impossible to find diabetic AND no crystal forming issues food. (Oh and mamow is Tomtoms sister so far so good on her no health issues yay) thanks in advance. I tried calling a few food companies but yeah the ol speak with your vet..I did.. that food is high priced cheap grocery store food it seams same junk ingredients so I'm lost.