I can be a testimonial for the poor quality of commercial cat foods. I have 2 cats now who are diabetic. Azrael just started insulin tonight. And it's a tiny amount just .5 but I think he will be OTJ sooner than later. A few weeks ago I took him for his yearly check up. They did a blood panel sort of a way to be proactive in case anything looked off. Azzy looks great. Good weight spunky sweet- doesn't have any of the diabetic symptoms, however his blood sugar was elevated to 313. Azzy does not travel well to the vets so she thought it could be stress induced. They needed to test his urine. Azzy is like my child. He is pretty easy going and will let me do anything so I just free caught the urine and today they called saying there was sugar. Nothing dangerous but it is confirmed that he is diabetic. I started spot testing him at the beginning of April and just by switching food I got his blood sugar down in the 200s. Tonight's preshot was 235. I just tested it +5 and its 117 after .5 units of Lantus. So while I am sad about having two diabetic kitties I really do believe that dry food is the devil! I have proof! Azzy is a trooper. He just gets really impatient with the ear pricks but I am working on that! My vet also was very impressed that I can monitor at home and I could free catch his urine. The information on this site is gold. It has helped Abigail tremendously and Azzy may not have to be on insulin long because I knew what to do and because we caught it early. Thanks guys!