18 Jul 2017 --- Mice that were fed a palatable high-fat diet go through stress responses similar to drug withdrawal when they switch to a low-fat diet, according to a study conducted by Dr. Steve Fordahl, currently at the University of North Carolina at Greensboro, and Dr. Dara Jones at Wake Forest School of Medicine. The study authors identified brain changes in the dopamine neurotransmitter system caused by stress when the palatable diet was removed.