Fig. 3
From: An overview on the role of dietary phenolics for the treatment of cancers
Gut microbiota mediates the transformation of phenolic compounds and enhance the health beneficial effects. Bound and complex phenolic compounds undergo bio-transformation in the human gastro intestinal tract by the gut microbiota into simple and easily bioavailable phenolic compounds. The active metabolites produced by the biotransformation have proven to exhibit better pharmacological actions and possess better health beneficial properties compared to corresponding untransformed compounds