Human: I've been hearing a lot about the ketogenic diet. What is it? Assistant: 
Ketogenic diet is a high-fat, low-carbohydrate diet that can be used to treat epilepsy in children and adults. It is also sometimes used as an effective weight loss tool. The diet involves drastically reducing carbohydrate intake while increasing fat intake. This results in the body producing ketones, which are used as its primary energy source.