The ketogenic diet mainly focuses on eating more foods rich in healthy fats and beneficial proteins, while reducing the carbohydrate diet to a minimum. The purpose is to stimulate fats instead of carbohydrates to produce energy through a process called ketonation. Studies have shown that the ketogenic diet has certain health benefits. Among them, the important nutrients that ketogenic dieters must supplement in their weight loss plan are calcium, magnesium, iron, vitamin D and fiber. But at the same time we also need to pay attention to some serious symptoms and side effects.