The ketogenic diet was originally created to mimic the beneficial effects of fasting. A low-carb, high-fat diet has been scientifically proven to lose weight fast, prevent cancer, achieve 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 out all carbs not realistic, so there is a huge emphasis on high-fat foods your body can use as energy.