Eating nori is generally not recommended for diarrhea. Diarrhea patients often due to gastrointestinal tract damage and increased sensitivity to certain stimuli will be prone to diarrhea, abdominal pain and other symptoms. Nori is rich in fiber, which may aggravate diarrhea. Seaweed is rich in protein, vitamins and minerals such as calcium and iron, which can strengthen the body’s resistance. But purple cabbage as a kind of crude fiber food, is not conducive to the digestion and metabolism of patients with diarrhea, but easy to cause the gastrointestinal tract of the digestive function of the burden increased, and the gastrointestinal tract for repeated stimulation, thus aggravating the symptoms of diarrhea, so diarrhea is generally not recommended to eat purple cabbage. If the diagnosis of diarrhea, after lifestyle modification symptoms do not ease, it is recommended that early standardized treatment to reduce the adverse effects of the disease.