Cole has diabetes. He started out needing 4 units of Lantus, morning and evening. A diet change dropped his blood sugar by half but he still needed insulin. He went into remission for a while when he first had his cancer surgery and was on chemo. These days, he gets 2 units in the evening.

I know many vets use caninsulin. I don't know why Lantus is the choice of my vets except I think it's "purer", if that makes any sense. I get it at my pharmacy in the pen needle style - there are 5 small tubes. It must be refrigerated.

There are syringes online that are about half the price of the ones from the pharmacy. I think the toughest thing I had to do was learn to do a "glucose curve". If you can get a vet tech to show you how it's pretty straightforward - the sample it taken from the edge of the ear. The first couple of times I did this I stabbed my fingers about as much as I got a blood sample. I wound up just poking my own finger to get a reading as I was used to the feeling by then!

Test strips are the most expensive part of the supplies.

This seems like a lot of information I know. Hopefully a change in diet will help. With Cole, that involved high-protein food. Your vet's theory on the other food sounds interesting!

GOOD LUCK!