I would avoid g/d – the ingredients are terrible. I would start looking beyond the vet for food. Has your vet mentioned increasing the insulin dose? Those numbers need to come down before too much damage is done. I wouldn’t increase the insulin dose and food at the same time though. You won’t know which change worked. Most vets in the early stages gradually increase the insulin dosages until the bg comes down to a better level. 550 is a risk of ketoacidosis and organ damage. My 14 lb dog was started at 5 units, increased gradually to 7 units where she stayed for some time. Once I got her settled on a good food that she likes , she is now at 4 units. You will see that as time goes on, their insulin needs change and so regulation is not permanent. I would make the food change first and after 5 – 7 days, explore an insulin change.
