It is a little more complicated than that. In order for a person to maintain the proper balance of sugar and insulin levels it is essential that everything be done on a precise schedule some people with diabetes need to eat small amounts ever 2 or 3 hours, other wise their sugar level drops, the insulin level rises and they can go into insulin shock and either die or go into a diabetic coma.

For a diabetic both sugar and insulin are deadly poisons. the problem is each is the antidote for the other. Insulin goes up, you need sugar immediately, sugar goes up you need insulin immediately. Some people with diabetes can control it with diet, but many need to control it with food and insulin, each taken at specific times.