"Eight treasures congee" using raw materials in addition to rice or glutinous rice, but also add millet, beans, walnuts, peanuts, jujubes, cinnamon, lotus seeds, yam, goji berries, etc., is a typical application of protein complementary role in food. Canned Eight Treasure Congee contains preservatives, and its shelf life is generally very long, there may be some nutrient loss during storage. If only an occasional meal with canned porridge for breakfast, no effect on the body, if often canned porridge for breakfast, it will lead to a nutritional imbalance in the body is not diversified enough, and long-term intake of preservatives containing the body will cause serious harm.