All of a sudden, it seems that everyone around me is doing a cleanse. I went to a work meeting a couple weeks back, and one of the women ordered a salad with no dressing, lemon on the side, and had an at-length conversation with the server about sugar in the dressing. "I'm on a cleanse," she explained.
And in the greatest tipping point of them all, Oprah got into the cleanse craze after reading Kathy Freston's book Quantum Wellness. Oprah ate a vegan diet and gave up alcohol and caffeine for 21 days. Of course in typical Oprah style, she had a private chef cooking for her most days who even overnighted vegan food to her in Las Vegas when she was desperate.
Generally, a cleanse is a strict elimination diet which usually requires eating lots of fruits and vegetables and eliminating items such as meat, animal products, alcohol, caffeine and processed foods. Some extreme versions of cleanses go even further. The Master Cleanse eliminates all solid food, has the cleansers drink a fresh lemon juice and use laxatives for up to 45 days.
People who are cleansing do so in order to re-set their system, remove toxins, and lose weight.