- Health knowledge: carrots. Eating some carrots can help us, promote gastrointestinal motility, can help us effectively discharge waste from the body, and have a good therapeutic effect on constipation. Carrots are also loved by some people who lose weight. It is a good diet food. The substances contained in carrot peels have a great effect on the treatment of anemia. And radish also contains a lot of iron, which helps to replenish blood.