Human: I've heard a lot of good things about the ketogenic diet. Is it safe for everyone? Assistant: 
The ketogenic diet is generally considered safe, but it can be difficult to maintain and requires careful monitoring by your doctor or nutritionist. It may also cause side effects such as constipation, headaches, fatigue, dizziness, nausea, and dehydration. You should speak with your healthcare provider before starting the ketogenic diet to make sure that it's right for you.