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Yo-yo dieting caused extreme fluctuations in Kelly Osbourne's weight. Her unhealthy weight loss methods included everything from starvation to purging to diet pills, and every dramatic slimdown was followed by weight gain. To truly change your body and your weight, you have to have the right mindset. Here's how to get started
See her dramatic transformation from MTV darling to VH1 Diva!
Kelly Osbourne Weight Loss
Photos: Kelly Osbourne Then and Now