Dumping syndrome is a condition that can develop after surgery to remove all or part of your stomach or after surgery to bypass your stomach to help you lose weight. Also called rapid gastric emptying, dumping syndrome occurs when food, especially sugar, moves from your stomach into your small bowel too quickly. After gastric surgery, it can be more difficult to regulate movement of food, which dumps too quickly into the small intestine. Eating certain foods makes dumping syndrome more likely. For example, refined sugars rapidly absorb water from the body, causing symptoms. Symptoms may also happen after eating dairy products and certain fats or fried foods.