Jennifer Aniston is allegedly looking to shed quite a lot of weight before walking down the isle in her upcoming wedding.

Despite having one of the hottest bodies in Hollywood, the actress is looking to drop about ten pounds before she plans on marrying her fiancé Justin Theroux. An insider claims that Aniston is unhappy with her appearance and wants to lose weight fast before her big day.

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A source close to the star tells Radar Online, "No way is Jen getting married at this weight. She'll lose another ten pounds before she'll walk down the aisle."

The We're The Millers star is a yoga and running enthusiast but with friends such as Chelsea Handler by her side, she's been indulging in wine and other alcohol and hasn't kept up her rigorous healthy lifestyle in the past few months. She has admitted in the past that while she is devoted to her healthy diet plan, she doesn't go to extreme measures when it comes to losing weight. She said, "I indulge when I want to... I don't starve myself in an extremist way."

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"Jen's besties, including Chelsea and Courteney Cox, have been informed of Jen's weight loss plan and support it," the source added. "Which, sounds terrible, but is absolutely how Jen operates among her peer group."

According to sources, Aniston and Theroux have not set a date for their upcoming wedding. The couple has been engaged though since August 2012.