TCF7L2 and type 2 diabetes mellitus: For example, the TCF7L2 rs7903146 variant is quite common in European ethnicities but not in Asians.95 On the contrary, T2D‐associated variants of KCNQ1 have been found to be more common in Asians than in Danes.96 Accordingly, T2D risk modifying effects of G × E interactions in non‐European ethnicities and whether current findings from studies with European ethnicities are transferable to other ethnicities are of high interest for future research.