Corresponding Author

Yuexin Yang

Department of Nutrition and Health, College of Public Health, Qingdao University, Qingdao, China

National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, China

Correspondence Professor Aiguo Ma, Institute of Nutrition and Health, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China. E-mail: magfood@qdu.edu.cn

Professor Yuexin Yang, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China. E-mail: yxyang@263.net