<human>:  What is a ketogenic diet?
<bot>: A ketogenic diet is a high-fat, very low-carbohydrate diet that can help individuals to lose weight and improve their overall health. It works by forcing the body to use fat as its primary source of energy instead of carbohydrates. This is achieved by drastically reducing carbohydrate intake, while increasing fat and adequate protein intake. As the body is forced to break down fats instead of carbohydrates, it produces molecules known as ketones, which can be used as an energy source.