Credible. Display the query celebrity. Com, Feng Jingnan is a national first-class nutritionist, the teaching dean of Ganlin Nutrition College, the distinguished lecturer of Beijing Nutritionist Club and the distinguished expert of China Nutritionist Training Institution Alliance. Feng Jingnan's nutrition lecture is supported by a professional and reliable knowledge system and is credible. In 2006, Feng Jingnan founded the first professional training college for nutritionists and health managers in China.