 Subjects will drink one from a series of beakers containing 40ml liquid nutrient every minute. During the drinking test, subjects will score satiety, fullness, bloating, heartburn, nausea and epigastric pain at 5-min intervals using a 100mm visual analogue scale sample attached. Participants will be instructed to cease intake when they reported maximal satiety or very severe dyspeptic symptoms defined as VAS score of 90 mm. The total volume ingested will be recorded. Symptoms will be assessed again 15 and 30 min after cessation of intake. 