A balanced diet should include beans because of their great nutritional content, according to nutritionists. Kidney beans are classified as a vegetable as well as a source of protein, much like other beans. Consuming a minimum of half a cup of beans daily might enhance general health. Some individuals may have unpleasant side effects from beans, including diarrhea, gas, and bloating ( 13 ). These effects are caused by alpha-galactosides, which are insoluble fibers.