How to Treat Gastroparesis Naturally? Gastroparesis: Overview Gastroparesis is a disorder characterized by ‘slow, heavy digestion.’ The condition affects the muscles of the stomach, and hampers the stomach’s ability to digest food. In this condition, the stomach cannot empty itself of the food in a normal manner. The occurrence of Gastroparesis is linked to damage to the ‘vagus’ nerve. This nerve controls the muscles of the stomach and regulates the digestive system by propelling food through the digestive tract, by