Siew Ng’s research focuses on microbiome-related health and diseases including inflammation, infections, cancer, and childhood diseases such as eczema and autism. Her work aims to transform microbiome diagnostics and therapeutics for early disease and cancer detection and health restoration. In 2017, she established Asia’s First Microbiota Transplantation and Research Centre and her group recently discovered a novel oral microbiome immunity formula that helps rebalance gut microbiota and boost immunity during the COVID-19 pandemic. This invention has been tested in a clinical study and is available to the wider community. She and her team has also developed a non-invasive stool test for prediction of recurrent adenoma. Siew Ng was awarded First-class award in Natural Sciences and Higher Education Outstanding Scientific Research Output Awards (Science and Technology) in 2020 from the Ministry of Education, China. She received her Bachelor of Medicine and Surgery degree from the University of London and the Doctor of Philosophy degree (PhD) from Imperial College London. She is Fellow of the American Gastroenterology Association, Royal College of Physicians of London, Edinburg and Hong Kong.