GCGR and metabolic dysfunction-associated steatohepatitis: To investigate whether Gcgr−/− mice tolerated a diet promoting metabolic dysfunction‐associated steatohepatitis (MASH) and steatosis, we fed female Gcgr−/− mice the Gubra Amylin Nonalcoholic steatohepatitis (GAN) diet and high‐fat diet (HFD), respectively.