If you have type 1 diabetes, you must take daily insulin injections to keep your blood glucose in a normal range. Your body produces little or no insulin.Insulin is a vital hormone that helps your body convert food into energy. Without insulin, you would die.If you have type 2 diabetes, the answer to this question is much less clear.nsulin is a vital hormone that helps your body convert food into energy. Without insulin, you would die. If you have type 2 diabetes, the answer to this question is much less clear.