After a vaginal birth, women often feel ravenously hungry, and may relish a large meal. A cesarean section is entirely different. Although you may feel hungry, you should eat carefully. Abdominal surgery can trip up your digestive system for a few days, so avoid heavy, rich or fatty foods that produce gas. Check with your doctor for specific dietary guidelines. In general, you'll want to eat light, nourishing foods, such as soup, yogurt, poultry, whole grains, and fruits and vegetables.