Q. I feel great after getting a colonic. In addition to feeling energized and lighter, I have a sense of well-being. Are colonics dangerous? Can you have too many colonics? Is once a week O.K.? A. There is no scientific support for a colonic, a popular “cleansing” procedure that holistic healers claim detoxifies the colon, rectum — except when an enema is used to prepare for a medical procedure. Click here to see the story on NYTimes.com. A colonic “has never been shown to have any clinical benefit,” said David Greenwald, director of clinical gastroenterology at Mount Sinai Hospital in New York. “The colon doesn’t need to be cleaned.” Colons naturally reabsorb water and carry waste out of th
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