You’re heating your leftover pizza in the microwave.
Make sure to heat up your leftover pizza in the oven instead of the microwave. Why? Well, “nuking leftover pizza in the microwave heats the crust to a temperature that changes the carbs in the dough to polymers called advanced glycation end products (AGE) that are hard for the body to eliminate,” according to William W. Li, MD, a physician and scientist.