Safe. Shifangyi brand, a nutrition and health care e-commerce brand, mainly deals with Shugan powder, Pueraria powder, multivitamins and Huoluo Xiaoshen pills. It is safe to eat fragrant grapefruit fruit and vegetable drinks, but the total calories are obviously less, and there is no theory of detoxification in formal science. Need to lose weight, suggest a light diet, limit the appropriate exercise of high-fat and high-calorie foods, and lose weight only if the calorie intake is less than the calorie consumption.