NUS researchers showcase gut friendly probiotic sour beer in Singapore
National University of Singapore (NUS) researchers Alcine Chan Mei Zhi (R) and Associate Professor Liu Shao Quan pour a pint of "gut-friendly" probiotic sour beer, which incorporates a probiotic strain that helps to neutralise toxins, at their Faculty of Science lab in Singapore July 14, 2017. Picture July 14, 2017. REUTERS/Edgar Su
