Amaranth is a common vegetable and there are commonly red amaranth and green amaranth. If you eat red amaranth the stool may be red, if you eat green amaranth it may not be red. If you eat too much red amaranth, it may lead to red stool color, this is because red amaranth, contains a lot of red plant pigments, these pigments are not absorbed by the human body, use, will be discharged with the feces, and the stool red situation. Green amaranth contains chlorophyll, which contains a lot of vitamin C and inorganic salts, which are indispensable in human life activities and can be absorbed by the human body, therefore, after consuming green amaranth, the stool will not be red. Amaranth belongs to a very nutritious food, which is rich in a variety of vitamins and minerals, which can replenish the nutrients needed by the human body, and can strengthen the body and enhance the body’s immunity. Patients should not be too nervous after the red stools, usually stop eating red amaranth, two days after the stool color will gradually return to normal. If there has been a red stool, it is recommended to consult a doctor in time to identify the cause of the targeted treatment.