The morning after a holiday binge can feel like a food hangover. Skipping breakfast may seem like a smart idea, but eating can actually get things moving. “Eating breakfast wakes up your digestive tract and promotes peristalsis—muscle contractions that move food along your digestive tract,” says Freuman. “And because most people poop in the morning when cortisol levels are higher, that’s your best chance to get it out of your body.” Freuman suggests an omelet with easy-to-digest spinach and tomato paired with whole grain toast.