“Dumping syndrome is a group of symptoms, such as diarrhea, nausea, or feeling light-headed or tired after a meal, that are caused by rapid gastric emptying. Rapid gastric emptying is a condition in which food moves too quickly from your stomach to your duodenum (the first section of the small intestines).

Are there different forms of dumping syndrome?

Dumping syndrome has two forms

• early dumping syndrome, in which you have symptoms within 30 minutes after eating a meal
• late dumping syndrome, in which you have symptoms 1 to 3 hours after eating a meal

Early and late dumping syndromes have different symptoms.”

National Institute of Diabetes and Digestive and Kidney Diseases (Definition & Facts for Dumping Syndrome – NIDDK)