Keto Diet For Dummies is your all-in-one resource for learning about the keto diet, getting started and reaping the full benefits like so many others have. Keto Diet For Dummies. The keto diet (also known as ketogenic diet, low carb diet and LCHF diet) is a low-carbohydrate, high-fat diet that shares many similarities with the Atkins and low-carb diets.