Detox Your Body for a healthier you. When your body is full of toxins, it will start to display signs such as tired and aching body, fatigued mind and low energy level. Pay close attention to your body and when you notice these symptoms, it's time for you to detox your body. To prevent massive toxins build up inside your body, you should detox your body with a detox diet preferably once a year. Detoxification is an approach for you to get in tune with your body after awhile and cleanse the internal systems to remove the toxin build up.