Top 30 Extreme Celebrity Weight Gains And Losses

by Lauren Olson (Deiman)

The pressure to stay thin and trim in Hollywood is relentless, leading many stars to diets, drugs, and daily dates with their personal trainers. But sometimes stars fall off the boat and pack on the pounds. Always in the public eye and under scrutiny, extreme celebrity weight shifts may be due to stress, a baby, a movie role, or an unhealthy lifestyle. We’ve gathered some of the best and worst celebrity slim-downs and plump-ups, including Jessica Simpson, Mischa Barton, Oprah, Lindsay Lohan and Nicole Richie.

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Jack Osbourne dropped the drugs and booze for exercise, and ended up looking fierce. [Photos: Getty Images]

[Photo: Splash News Online]