If you eat sweet potatoes in moderation at night, it generally does not cause adverse effects on the body, while if you eat too much, it may increase the burden on the gastrointestinal tract, resulting in discomfort. Sweet potatoes are relatively common coarse grains, which are rich in dietary fiber, vitamins, starch, carotene and other nutrients, usually eat some of the appropriate for the body to supplement the energy and nutrients needed, but also to promote gastrointestinal motility. But sweet potatoes contain high starch, as a staple food if you eat too much at night, will increase the burden on the gastrointestinal tract, resulting in discomfort, such as nausea, acid reflux, stomach bloating and so on. It is recommended to eat sweet potatoes in normal life to control the amount, do not eat too much, especially at dinner need to control the amount. General dinner to low sugar, low fat as the principle, do not eat too full, is conducive to good health.