 His new memoir is written along with his sister, Aliza Carmel, who herself cycled through fad diets, eventually pursuing a master's in nutrition and a doctorate in psychology with the goal of changing the narrative on fatness. You have very strong feelings about the body positivity movement. You're not 100 percent on board like, oh, yeah, we're all self-love because you feel like there's a lot of things we're not considering in this movement. Yeah.