Foods rich in dietary fiber can help to detoxify the intestines, keep the stool unobstructed and remove toxins from the body. Foods rich in dietary fiber include brown rice and milled rice, as well as corn, millet, barley, wheat bran and wheat flour. In addition, there are many dietary fibers in root vegetables and seaweed, such as burdock, carrot, green beans, red beans, peas, potatoes and Undaria pinnatifida. In addition, it is also very important to prevent acne and properly supplement vitamins. Vitamin A can effectively control the secretion of sebaceous glands and reduce the exfoliation and keratinization of epidermal cells. Foods rich in vitamin A mainly include: soybeans, eggplant, Chinese cabbage, radish, spinach, green onions, carrots, pumpkins, tomatoes and so on.