If someone gets too much insulin they become hypoglycemic and act weak, lethargic, or shaky. To help reduce the insulin dosage there are a few things I would suggest you do for your dog. Feed a diet appropriate for diabetes; give digestive enzymes with meals, and a probiotic and a high quality fish oil supplement daily. These together with Dia-IonX work synergistically to help stimulate healing and have helped many pets to either lower their insulin dosage or better regulate their diabetes. Try to establish a regular moderate exercise schedule for this helps glucose to enter into the cells. The goal is to regulate the diabetes well so you can avoid the complications of diabetes. Please let us know how you do and if there are any other questions about Dia-IonX that we can answer for you. I hope we can improve quality of life for you and your dog.