What's wrong with eating pig blood and pulling black?

Black refers to black stool, eat pig blood pull black stool may be caused by iron oxidation, digestive system reaction, intestinal flora and other reasons.

1, iron oxidation

due to pig blood contains iron, and oxidation reaction with sulfide in the intestine, easy to form iron sulfide, appear black stool.

2, digestive system reaction

due to healthy people after eating pig blood, intestinal absorption and digestion, in the process, the iron in pig blood reaction, may cause black stool.

3, intestinal flora healthy

people because the intestine contains more bacteria, can decompose food ingredients, and in the process, may form black substances, with stool excretion, performance as black stool.