This smoldering actress went on an intense dieting and exercise routine for her role in Black Swan. How did she feel after dropping so many pounds? "Flat, flat, flat," the actress said of her Black Swan figure in a Glamour magazine interview. "There was no shape, no form, nothing, nothing. God, I'm probably 25 pounds heavier in muscle mass and weight at this point," she added, in a refreshing reaction.
Kristin Cavallari
This former Laguna Beach: The Real Orange County reality star slimmed down significantly over the years. We liked how she looked before!
Kristin Cavallari
This former plus-size model came under fire for losing weight. She dropped to a U.S. 8 from a U.S. Size 12. Breaking into a demanding industry, Crystal Renn lost her characteristic curves in 2010.
Hilary Duff
This former Disney Channel actress and singer went through an alarmingly thin phase in 2005. She looks a lot healthier now! She also welcomed the birth of her first child, Luca Cruz Comrie in 2012.
Nicole Richie
Worryingly thin in 2006, Nicole Richie has since filled out a little more. Motherhood is looking good on her!
In 2008, this skinny starlet appeared even more alarmingly thin with her 12-pound loss. She explained to Vogue magazine that the 12-pound loss was due to the stress of dealing with a family illness. Since then, she looks healthier!
Renee Zellweger
This actress gained weight for a role in Bridget Jones's Diary. Currently, she's a little too thin. Before she trimmed down again, Renee Zellweger looked much healthier and happier too.
As you can see, these celebrities go against the grain by gaining weight and looking good while doing it. Let's hope they continue to stay healthy!