Dr. Ren-You Gan is an Assistant Professor and Presidential Young Scholar at the Department of Food Science and Nutrition, Faculty of Science, The Hong Kong Polytechnic University, Hong Kong SAR, China. He received his medical bachelor's degree from Sun Yat-Sen University and his PhD degree from The University of Hong Kong. He was previously the Principal Scientist at the Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR) and Adjunct Assistant Professor at the National University of Singapore (NUS), Singapore. His current research interests include probiotics and food functional ingredients.