Human: I've been hearing a lot about the ketogenic diet. What is it and is it healthy? Assistant: 
The ketogenic diet is a high-fat, low-carbohydrate eating plan that forces the body to use fat for energy instead of carbohydrates. This type of diet can be beneficial for weight loss, as well as improving health conditions such as epilepsy, diabetes, and even cancer. It also has potential benefits in terms of mental health, with some research suggesting that it may help reduce symptoms of depression and anxiety. However, there is still much more research needed before we can say for certain if the ketogenic diet is truly beneficial.