|If insulin is for twice daily, try to give it 12 hours apart and at the same time each day. You should also work with your veterinarian to develop a weight management and feeding plan. Stick to regular feeding times.
Maintaining a special diet significantly help some cats, even to the point that the cat may no longer need insulin injections. Observe your cat's thirst and frequency of urination. If these remain increased, your veterinarian may need to adjust the insulin dosage. While there is no way known to prevent type I DM, proper weight management can reduce the likelihood of your cat developing type II DM.