I have taken away his dry food today and only giving him fancy feast, chicken or turkey classic, he acts like he's starving to death & it's breaking my heart
It takes time for them to get used to being fed more on a schedule than free feeding, but they do get used to it....but boy do they have their ways of making us feel guilty!!!
Most of us feed multiple times a day (most vets will tell you that you can only feed twice a day).....the smaller meals are actually easier on the pancreas than two large ones though! Just like human diabetics are told to eat small, frequent meals.....it's the same with our sugarcats!!
Now some feeding protocols depend on the type of insulin you're going to use. Certain older, harsher insulins like Vetsulin/Caninsulin really require that they eat a significant meal about 30 minutes before they get the shot, where the longer acting, more gentle insulins like Lantus, Levemir and ProZinc don't hit as "hard and fast" so it's not as important that the cat eats a big meal before shooting....just that they're
willing to eat!
Until Fonz gets his blood glucose under better control, he actually needs more food! Think of insulin as a "key"....and every cell in the body has a "lock" on it....without the key, the glucose from the food he eats can't get into the cells to nourish them so the cat ends up eating more and more trying to "feed" himself....while he's actually starving to death. That's how important insulin is to the body.
I'm tempted to suggest that you cancel your appointment for 3 day testing tomorrow and get some more information from your vet about how they intend to treat Fonz so you can take a little time to learn more about it. When China was first diagnosed, we waited until she'd been transitioned onto the low carb canned food to see how far it would drop her numbers before we started insulin....it's much safer to do that before you start
After 3 days or so on low carb food only (while you're learning to home test) you'll be much better prepared to keep Fonz safe as well as you'll have time to learn more about effective treatment
But that's a decision I'll leave to you.
In answer to your question in another person's post, normal numbers for a cat are 50-120 on a human meter.