Are juice cleanses good for you or are they just quackery?

Overrated, dangers: Our body does a perfectly good job of getting rid of toxins on its own. There’s no evidence that these types of diets are needed. There are possible risks from lengthy or repeated fasts: vitamin deficiencies, muscle breakdown and blood-sugar problems. The report, fruit juice drinks tied to diabetes: american diabetes assn. Ties fruit juices to diabetes was published in nutrition news 7-24-08 #105.