The Copenhagen diet is a 13-day diet circulating on the Internet. If you eat this diet, you can enjoy 200 grams of low-fat ham and 200 grams of yogurt at noon and 200 grams of steak and lettuce salad at night. It is said that you can lose 10 kg every day, which is sought after by people who want to lose weight but don't want to lose the taste of food. But in fact, due to the serious shortage of staple food and carbohydrate food intake, the nutritional components of this recipe do not meet the intake ratio of protein, carbohydrate and fat in a reasonable diet of 4: 4: 2, so there are great security risks in the actual use process; In addition, the intake of recipes is strictly limited, so it is not suitable for people who lose weight of all sizes and weights, especially those with a large weight base. Forced use may be life-threatening.