Why do my readings remain over 200 three hours after a meal, even when I take insulin before eating? I get a feeling of hunger when my levels are over 200.
It is not uncommon to have elevated blood glucose 3 hours after meals – even if one takes insulin before the meal. Blood glucose levels after a meal are primarily related to the blood glucose before a meal, the carbohydrate content of the meal, and the effects of insulin or other diabetes medications on preventing a rise in blood glucose levels. The effect of a rapid-acting insulin (Humalog, Novolog, Apidra) is related to the dose of insulin as well as the amount of carbohydrate consumed in the meal. If you are closely following a meal plan as outlined by a dietitian, – then the dose of rapid-acting insulin may need to be increased. Talk with your healthcare provider about how you might be able to adjust your rapid-acting insulin dose to prevent high glucose levels after meals.