Human: I've been hearing a lot about the keto diet. What is it and is it good for weight loss? Assistant: 
The keto diet is a high-fat, low-carbohydrate eating plan that has become increasingly popular in recent years. It’s based on the idea that by reducing your carbohydrate intake, you can force your body to burn fat instead of carbs for energy. This can lead to weight loss and improved health. However, some people find it difficult to stick with the diet long term due to the lack of variety.