It's my OPINION that juice fasting and the Master-Cleanse are both beneficial - they will both help the body to cleanse and detox. Personally, I do the Master-Cleanse for 2 reasons: 1. First because when I drink all of those veggies and fruits, it awakens my desire for food more than does the lemonade. 2. And second, because juicing is so expensive. I would still recommend putting plenty of cayenne pepper in your veggie juices. I've posted a GREAT link to a site dedicated to juice fasting below. Enjoy and God bless!!