In healthy individuals, blood glucose concentration is tightly regulated. Insulin is secreted in a basal rate between meals that is sufficient to constrain the rate of hepatic glucose release to match the rate of glucose uptake. After meal ingestion, the insulin secretion rate is promptly increased and leads to further suppression of hepatic glucose release, increased glucose uptake by insulin-sensitive tissues, and restoration of blood glucose levels to fasting levels. In patients with diabetes, the mechanism of hyperglycemia in the fasting and fed states is excess hepatic glucose release. This is due to inadequate insulin delivery to the liver along with hepatic insulin resistance. Treatment strategies to restore the blood glucose concentration to normal require provision of an adequate amount of insulin to appropriately inhibit hepatic glucose release in the basal fasting state and after meal ingestion.
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All you need is a proper diet of fresh fruits and vegetables and get plenty of exercise and you'll be fine. Ever heard those words from your doctor? If that's all heshe recommends then you're missing out an important ingredient for health that he's not telling you. Fact is that you can adhere to the strictest diet, watch everything you eat and get the exercise of amarathon runner and still come down with diabetic complications. Diet, exercise and standard drug treatments simply aren't enough to help keep your diabetes under control.