I've been doing the Master/Lemon Cleanse for 7 days now in a homerun stretch for 10. I can really say that while the rest of the days up until now have been really smooth sailing, today was tough. My body was really dumping a lot of wastes and toxins. For those of you unfamiliar with the Master Cleanse, it's a liquid fast invented by Stanley Burroughs that involves you ingest a mixture of water, fresh squeezed lemon juice, and real grade B maple syrup(not the sugary stuff that you normally pour over pancakes). During this time you do not eat any solid foods. Is it safe? Absolutely! Of course as with anything, if in doubt consult your physician. I've been using this cleanse about once or twice a year for nearly 8 years now and it has always given my system an internal "spring cleaning"-- a much needed break from all the stress our Western diet can put on it. I will have to say that I feel incredibly energetic and have a clarity of mind that is unbelievable. I've also started back with the yoga and I'm moving full steam ahead with my meditations. I'm making a major turnaround since my bout with anemia. I think my energy is back and it's here to stay!