By Jennifer MitchellContent provided by
Mila Kunis recently told "Harper's Bazaar" magazine that her petite body has never been the same since shrinking to 95 pounds for her role as Natalie Portman's ballerina rival in "Black Swan".
"When I gained it [the weight] back, it went to completely different areas," she says, referring to her hips and stomach. After filming, Kunis resumed her regular exercise and eating habits and returned to a healthy weight.
Rapid weight loss traumatizes the body, which wants to maintain its original form, says Andrea Giancoli, a Los Angeles-area registered dietitian and spokesperson for the Academy of Nutrition and Dietetics. When there are no carbohydrates and protein left to use, the body goes into starvation mode and slows its metabolism to conserve energy.
If you go back to your normal routine after rapid weight loss, your metabolism is already slow, so you gain weight faster than you lost it and it comes back as fat, Giancoli says.
It is not healthy for your body. It makes you more tired and doesn't allow you to perform well in daily life, Giancoli says.
"Why take the chance?" she says.
After gaining and losing weight for the first two "Bridget Jones's Diary" movies, Renee Zellweger said she felt panic listening to specialists talk about the damaging long-term effects of quick weight fluctuations. She said she might wear a fat suit for the third installment, which is scheduled to start filming this year.
Like Kunis, Anne Hathaway was asked to shed pounds quickly for her new role in the movie remake of "Les Misérables". She reportedly ate around 500 calories a day to achieve her goal of losing 16 pounds in three weeks.
"If she loses the weight, she can expect to gain it back," Giancoli says.
Losing one to two pounds a week is an acceptable weight-loss goal and gives your body time to adapt. The same goes for regaining weight; do it slowly, so your body can get used to it.
If you are considering losing weight, talk with your doctor first. A registered dietitian can also help you manage your weight safely, Giancoli says.
"You really have to choose a lifestyle that you can live with when you start going on a weight-loss venture," she says. "Otherwise you can expect to gain the weight back."
View the original "Black Swan's" Mila Kunis and quick weight loss article on myOptumHealth.com