AHR and type 2 diabetes mellitus: Epidemiolo-gical and laboratory studies have provided evidence that exposure to AHR agonists, in particular polycyclic aromatic hydrocarbons such as 2,3,7,8- TCDD, affects glucose homeostasis and increases the incidence of T2D (Bock, 1994[3]; Goodman et al., 2015[12]; Warner et al., 2013[40]).