Tik Tok sends a copy of yam powder, which can write about the efficacy of yam and the advantages of yam powder. Yam contains mucin, amylase, saponin and other substances, which has nourishing effect, prevents fat deposition and maintains vascular elasticity. Yam mucus can also prevent mucosal injury, protect the stomach wall and prevent gastric ulcer and gastritis. Yam powder is a simple and portable yam, which can be directly drunk. Whether it is office tea or breakfast meal replacement, it can be made into a bag anytime and anywhere, with delicate taste, smooth aroma and lingering fragrance, which can be eaten by the elderly, pregnant women and children.