Levels of polyphenols and phenolic metabolites in breastmilk and its associations with plant-based food intake in Hong Kong lactating women Zhou Lu, Yat-Tin Chan, Kenneth Lo, Vincy Wing-Si Wong, Yuk-Fan Ng, Shi-Ying Li, Wing Wa Ho, Man-Sau Wong and Danyue Zhao Abstract Dietary polyphenols are phytonutrients exhibiting multiple health benefits in humans including those in infants. However, data on breastmilk (poly)phenolic composition are limited, especially among Asian populations.