The main causes of diarrhea from eating spinach are: 1. Spinach itself is a cold food, which contains a lot of food minerals, vitamins and trace elements, of which there is a high content of potassium ions, which can promote increased intestinal peristalsis, thus leading to increased bowel movements. The main solution is to blanch or boil the spinach through hot water and eat it, as the potassium ions will be lost and reduced in the heated spinach, which can reduce the symptoms of diarrhea. 2, spinach contains a lot of dietary fiber, which promotes intestinal peristalsis and can also lead to diarrhea, and the solution is to stop eating spinach. 3, spinach is contaminated, including bacteria and pesticides, and eating contaminated spinach can lead to acute Enteritis, thus will appear abdominal pain, increased number of stools, mucus-purulent blood stool and other phenomena, should promptly seek medical attention.