How To Lose Weight Even When You Think You Can't With The 7 day undiluted lemon cleanse. The 7 day undiluted lemon cleanse is designed to clean the body out. It's designed to give the glands, organs and systems a break. It's going to help remove all the stagnant mucus, toxins and acids that cause health issues and give your body a reset while at the same time help you drop excess weight. It gives your body a much needed break so it can heal.