Binging on high-sugar, high-fat foods causes you to go to bed with elevated blood sugar levels. At any time of day, these set the body up for subsequent sugar crashes and weight gain, with the body quickly storing excess sugar as fat, explains Lori Zanini, a California-based registered dietitian and certified diabetes educator with HealthCare Partners medical group. But, since your body uses less sugar as fuel when you’re lying in bed as opposed to running around, potentially more sugar winds up in your fat cells when you eat those foods late at night.
