a Tianjin Key Laboratory of Food Science and Health;
School of Medicine;
Nankai University;
Tianjin 300071;
China;
Centre for Nutrition and Food Sciences;
Queensland Alliance for Agriculture and Food Innovation;
The University of Queensland;
Brisbane;
QLD 4072;
Australia;
Tea polyphenols; Gut microbiota; Metabolic syndrome; Metabolites; Gut organ/tissue axis;