Human: What is a ketogenic diet and why is it healthy? Assistant: 
A ketogenic diet is a low-carb, high-fat diet that aims to put the body into a state of ketosis. This occurs when the body has to turn to burning fat for energy instead of carbohydrates. The goal of a ketogenic diet is to provide the body with the necessary nutrients while avoiding most carbs. This type of diet is known to be beneficial for weight loss, and can reduce the risk of cardiovascular disease, type 2 diabetes, inflammation, and some cancers. Additionally, it can have positive impacts on mental health, and improve energy levels and focus.