2. Green juice is rich in plant fiber and trace elements needed by human body, which can meet the daily nutritional needs of human body. So it is ok to use it as a meal replacement. However, you can only choose to use it occasionally for meal replacement when eating, which can help the human body excrete toxins and avoid toxins from accumulating in the body. When you use it to lose weight, you must not blindly choose to use it for three meals a day, otherwise you will be troubled by this.