The carbs in high-glycemic foods like doughnuts and even cornflakes break down quickly, releasing a rush of sugar into the bloodstream, followed by an insulin spike. Then, your sugar level crashes—big time—which can increase appetite and cravings for hours. If you eat a bad breakfast, no food later on can make up for that mistake; you’ll be jonesing for junk food ‘til dinnertime.
READ MORE: Best Breakfasts to Curb Cravings
