Jennifer Johnson is an internationally renowned registered dietitian and functional dietitian, who has been focusing on the research and practice of nutrition for 15 years. She holds the certification of American Dietitians Association (ACN) and is currently a visiting lecturer at Harvard Medical School and a consultant for several health journals. She is famous for the concept of "food is medicine", and is good at integrating traditional herbs with modern nutrition, especially in the fields of intestinal health, chronic disease prevention and plant-based diet, and has formulated nutrition strategies for many global brands to promote the popularization of natural dietotherapy.