The redness of the stool can occur after eating red amaranth. The main reason is that the food itself is red in color and contains some plant pigments, so if it is not completely digested and absorbed by the body after eating, it will show up as red stools. In addition, if the patient has indigestion, it is also easier to have red stools. So one should pay attention to the digestive function of the gastrointestinal tract, once it is accompanied by abdominal pain or bloating, or even nausea or vomiting. It is recommended that you can take stomach-healthy tablets, then with pancreatic enzyme enteric capsules or to increase some beneficial bacteria in the intestinal tract. Usually pay attention to the diet as much as possible to eat light food, do not eat too much greasy or too much spicy things, must eat some good digestive food, do not eat stained heavier food for the time being.