Often too much mung beans can lead to flatulence. Mung beans contain a large number of oligosaccharides, and oligosaccharides in the digestion, the need for α-galactosidase decomposition, but under normal circumstances the body does not have too much α-galactosidase for its decomposition, which leads to a certain degree of absorption, utilization of the situation is too little. As the undecomposed components of mung beans enter the intestinal tract, they are decomposed by the bacteria in the intestines, which results in a large amount of gas and a feeling of abdominal distension. Therefore, mung beans in daily life to eat too much is likely to lead to the occurrence of flatulence, it is recommended that people with poor gastrointestinal function in moderation, so as not to cause discomfort problems.