Question: how long does it take to bring blood sugar up?
Answer: The American Diabetes Association recommends the 15-15 rule if your blood sugar dips below 70 mg/dL: Eat at least 15 grams of carbohydrates, then wait 15 minutes to recheck your blood sugar. If you're still below 70 mg/dL, have another 15 grams of carbs, wait 15 minutes, and check your levels again.