Best times to take mealtime insulin Research shows that the best time to take a mealtime insulin is 15 to 20 minutes before you eat a meal. You can also take it after your meal, but this may put you at a higher risk of a hypoglycemic episode. Dont panic if you forget to take your insulin before your meal.
What happens if we dont eat after taking insulin?
Take insulin, but dont eat: Rapid-acting and short-acting insulin injections should be taken just before or with meals. Your blood sugar rises after meals. Taking rapid-acting or short-acting insulin without eating could lower your sugar to a dangerous level.
Is eating late at night bad for diabetes?
Regina Castro, M.D. If you have diabetes, late-night snacks arent necessarily off-limits — but its important to make healthy choices. Late-night snacks add extra calories, which can lead to weight gain.