Zongye extract: wild Zongye (Zizania latifolia) was picked from the sub-virgin forest near Zhangjiajie at an altitude of 1000 meters, and the latest biotechnology in China and the United States was adopted to dynamically extract effective functional factors according to GMP standards. The extract of Zizania latifolia is rich in Zizania latifolia polysaccharides, flavonoids, organic zinc, selenium, iodine, calcium, magnesium, iron and various vitamins.