Five cereals, including rice, two kinds of millet, wheat and beans, are basic aliments for health maintenance. When we were young, the old named the five cereals as “lord cereals” respectfully. They are top-grade material for contracting universal essence. Taking about Huang Di's Classic of Internal Medicine, there are records that five cereals for health keeping, five fruits for aiding, five animals for benefiting, and five vegetables for complementing.