New diets appear on the market frequently. This book describes how health practitioners can evaluate popular diets to determine if they generate results and, more importantly, are safe for their patients. This book reviews various diets including Atkins, DASH, Paleo, South Beach, Weight Watchers, Mediterranean, Zone, vegan, vegetarian, and meal delivery diets. Each chapter presents an overview of the diet, how the diet works, research and results, pros and cons, proven results, and determinations on how to select this diet.