Yes, this is true, and remember it is the stubborn cells that causes the insulin to go up. With the excess insulin the glucose is overly absorbed by the cells and that terrible sugar drop is what we experience. According to Protein Power ther is a test that can be taken to measure insulin response. As a matter of fact this test is often needed to diagnose hypoglycemia ( hyperglycemia is synonomous to diabetic ). I have had glucose tests that never tested positive for hypoglycemia although the symptoms tell me diferently. If I had the insulin test I am sure it would prove it.