You see their faces everywhere, peering from the jackets of their latest bestsellers or DVDs and dispensing weight-loss advice on TV talk- and self-help shows. They star on popular fitness programs like Bravo’s "Thintervention" and NBC's "Biggest Loser", cheering on participants to greater physical achievements -- and lower weights. Now, these top fitness and weight-loss celebrities are here to help you. Read on for the number one, never-fail tips each of these notable diet experts lives by.
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