I'll remind you though that the make or brake of your quest for "health" will definitely >>NOT<< be the Master Cleanse, that's just a good start. Your real success will be based on what you do >after< you clean the junk out. I you go back to your old diet/lifestyle you will loose all benefits including any weight loss.
While you're fasting it will be a great time to educate yourself on nutrition and either plan some daily exercise or start looking for a gym or aerobics class in your area. The hardest part about exercise is getting started. You might hafta force yourself at the beginning but combined with a good nutritional program you'll start feeling so good you'll become addicted!