Eat sweet potatoes will be bloated, the reasons are as follows: 1, sweet potatoes starch and crude fiber content is very high, eat too much sweet potatoes at once, a lot of starch will accumulate in the stomach, prone to indigestion, the stomach bacteria decomposition fermentation starch, it will produce a lot of gas, it will lead to gas. 2, steamed sweet potatoes within the branched chain starch will expand, if not eaten in time, sweet potatoes become cold, the branched chain starch will age back to life. After eating it will easily lead to indigestion, it will lead to flatulence. 3, raw sweet potatoes contain a substance of oxidase, this substance into the stomach, will produce a lot of carbon dioxide gas, resulting in flatulence. If you eat sweet potato gas can do this: 1, if the gas is not particularly serious, you can massage the abdomen to promote gastrointestinal peristalsis and gas discharge, you can also eat a little to promote digestion of food, such as hawthorn. 2, if the gas is very serious, you can eat to promote digestion of drugs, such as cisapride, morpholine, etc..