The dark green color of the stool after eating deeply hydrolyzed milk powder may be caused by hunger, high iron content, indigestion, enteritis and other reasons. 1. Hunger: after drinking deeply hydrolyzed milk powder, you are still in a state of hunger, and after the bile is discharged into the intestines, the concentration of bile increases, so you discharge green stools. 2. High iron content: deeply hydrolyzed milk powder, added iron is relatively high, can not be fully digested into the intestinal tract after oxidation, so the discharge of green stools. 3. Indigestion: brewing milk powder concentration is too high or eating too much milk powder, increase the burden on the stomach and intestines induced indigestion affects the digestion of milk powder, there will be green stools, accompanied by bloating, loss of appetite and other symptoms. 4. enteritis: drinking deep milk powder during the lack of attention to hygiene, intestinal infection by pathogenic bacteria triggered inflammatory foci, resulting in intestinal dysfunction affecting digestion, decomposition and absorption leading to diarrhea, green stools. Drinking deep hydrolyzed milk powder pulling green stools, it is recommended to consult a doctor to identify the cause of the disease and then treatment.