What makes fad diets so appealing to so many people? How did there get to be so many different ones, often with eerily similar prescriptions? Why do people cycle on and off diets, perpetually searching for that one simple trick that will solve everything? And how did these fads become so central to conversations about food and nutrition? Anxious Eaters shows that fad diets are popular because they fulfill crucial social and psychological needs--which is also why they tend to fail. Janet Chrzan and Kima Cargill bring together anthropology, psychology, and nutrition to explore what these programs promise yet rarely fulfill for dieters. Considering dietary beliefs and practices in terms of culture, nutrition, and individual psychological needs, Anxious Eaters refrains from moralizing or promoting a "right" way to eat. Instead, it offers new ways of understanding the popularity of a wide range of eating trends, including the Atkins Diet and other low- or no-carb diets, beliefs that ingredients like wheat products and sugars are toxic, allergenic, or addictive, food avoidance and "Clean Eating" practices, and paleo or primal diets. Anxious Eaters sheds new light on why people adopt such diets and why these diets remain so attractive even though they often fail.