FACT: Our bodies are extremely smart and have built-in processes for detoxing every day, says Kristen Carlucci, RD, registered dietitian and nutrition expert for Pitney Bowes Inc.
Yes, people lose weight on juice cleanses, but not because of any miracle ingredient or because your body is cleared of toxins that are slowing down your metabolism. Weight lost during a cleanse is most likely a result of taking in far fewer calories than usual. While filling up on fruits and vegetables is a positive thing, the problem with juice cleanses is that they are a temporary fix. They don't teach you the balanced nutrition habits you should be forming in order to lose weight and keep it off for good, Carlucci says.