The ketogenic diet was originally created to mimic the beneficial effects of fasting. A low-carb high-fat diet has been scientifically proven Lose weight fast, prevent cancer, optimal health, and much more. Cutting the amount of carbs you eat everyday is the fastest way to lose weight period. The trick to the Ketogenic diet is that it is not a no-carb diet but rather low-carb. Completely cutting our all carbs not realistic, so there is a huge emphasis on high-fatty foods that your body can use as energy.