Master Cleanse "tea" while eating regular food?

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Has anyone done the Master Cleanse? I read somewhere that this lady just drinks the "tea" throughout the day but I think she was eating regularly. She didn't mention fasting at all. I don't want to completely cut out food, I was just wondered if it works as a metabolism booster/fat burner when you eat normally! Thanks!

Here is the article I read:

http://shine.yahoo.com/healthy-living/fat-burning-metabolism-boosting-detox-tea-020000722.html