This series of products is based on the principle of "five-season health preservation" in Chinese medicine health preservation, choosing red, green, yellow, white, and black multicolored grains to correspond to the nutrients needed by the heart, liver, spleen, lung and kidney. Named after the seasons, including five seasons: spring, summer, long summer, autumn, and winter, breaking the traditional concept of four seasons and proposing the theory of long summer, which arouses consumer interest.