My cat Spacey keeps having high blood glucoses. He is on 3.5 units twice daily. The last couple of days his nadirs were in the 200s and he climbs right back up into the 400s and sometimes higher by pre-shot. I have him on primarily on Friskies Special Diet, Ocean whitefish, Beef & chicken & turkey flavors. Sometimes Fancy Feast turkey & gibleats. Could the food be causing this? I have his BGs listed in my 'Spacey is still not regulated' thread. If anyone that is familiar with Prozinc and could give advice, I would be greatful.