October 23rd is the Double Ninth Festival. Protecting the health of the elderly is crucial for the overall health of the whole nation. Healthy eating habits are crucial for elderly people. Recently, a reporter from People's Daily interviewed Tan Guijun, director of the Nutrition Department of Tianjin First Central Hospital, to learn how elderly people can eat healthily. Design and Production: Intern Yuan Xiaoqian, People's Daily Reporter Yan Yan (New News Agency)