Fed Up by Daniel E. Lieberman. It's pretty depressing talking about corruption of the food industry, diet gurus fleecing people of their money, and how ineffective most diets are. It's written by an anthropologist who discusses where our diets come from and compared historically to what different cultures ate at various times. Very informative, very interesting, but pretty depressing about how shitty people are profiting from vulnerable people just wanting hope and health.