Osmolality and energy content can influence stomach emptying. As the particle concentration within the stomach and small intesting exceed that in the extracellular fluid water is drawn in by osmotic force. This increases the volume and slows the rate of emptying from the stomach and subsequent absortion.HFCS is considered a desirable carbohydrate ingredient because it has a lower osmolality than sucrose or glucose.In addition a concentration of more than 8% carbohydrate in the stomach can slow down gastric emptying.This may be due to the release of the hormone cholecystokinin which slows stomach empying