The ADA states that our glucose levels shouldn’t increase above 140 mg/dL after eating. But again, that’s “normal,” not optimal. Studies in nondiabetics give more precise information: we should strive to avoid increasing our glucose levels by more than 30 mg/dL after eating. So in this book I will define a glucose spike as an increase in glucose in our body of more than 30 mg/dL after eating.
