Eat pig blood stool black is what reason

After eating pig blood stool color black is a normal phenomenon, do not worry. Hemoglobin in pig blood is rich in iron. Through the intestinal tract when it will be absorbed by the body, not fully absorbed part, will be in the stomach acid and intestinal bacteria combined with sulfide to form black ferrous sulfide, so the stool is black. In addition to taking some drugs or digestive system diseases, will also show black stool situation. To identify whether there are abnormal symptoms in the body, black stool caused by food and medicine or disease.