The ketogenic diet is a diet that prohibits the intake of carbohydrates and allows the intake of proteins and fats at will. It is a diet that converts fats and proteins into blood sugar, thus burning energy and achieving weight loss. It is a relatively specific method of weight loss, and the ketogenic diet has certain benefits. It does not require dieting, reduces the appearance of stomach problems and allows one to lose weight quickly on a full stomach, but the ketogenic diet also has undesirable effects and may cause palpitations, irritability and headaches. Others may experience rashes, kidney stones, joint pain, and other symptoms. Ketogenic dieting is not suitable for diabetic patients, which can easily cause the blood sugar in the body to rise. It is also not suitable for pregnant women to lose weight, which can easily cause adverse effects on pregnant women and fetuses, and can even lead to miscarriage.