‘Pitch Perfect’ Star Rebel Wilson Picks Up ‘No Sugar’ Challenge To Lose Weight But Falls Off The Wagon After 20 Days

Rebel Wilson's "No Sugar Challenge" falls off the wagon after 20 days as the "Pitch Perfect" actress failed to resist the pull of refined sweets following a taxi incident.

Rebel Wilson recently took on the "No Sugar Challenge," swearing off chocolates, cupcakes, candy (and basically every good thing one can have in their mouth) so that she could lose weight.

The Aussie comedian recently took to Twitter to announce to her fans her new weight-loss adventure.

"I'm starting a 'no sugar' challenge starting today!! I'll let you guys know how long I last for!! X," she tweeted.

During the course of Rebel Wilson's "No Sugar Challenge," she started a Twitter "diary" on her progress. On her fifth day, the actress tweeted: "NO (refined) SUGAR CHALLENGE DIARY: It's been 5 days, went to see Magic Mike, all those shiny G's made me think of skittles...resisted,"

The actress seemed to be doing a good job with the said challenge, even tweeting jokes about it while vacationing in Dubai with her boyfriend, Los Angeles-based comedian, Mickey Gooch.

On July 19, Wilson tweeted a hilarious photo of herself, with a falcon on her arm and a wide desert with camels in the background.

The photo was captioned: "No sugar today but plenty of desert x #Dubai #luxuryfalconry."

But soon enough, Rebel Wilson's "No Sugar Challenge" comes to a halt following the actress' stressful encounter in a taxi ride. However, she remains optimistic about the whole thing. "I lost the NO (refined) SUGAR CHALLENGE after 20 days.. had a scary taxi ride and succumbed to ice-cream & Mars Bar..but back on the wagon x, " the comedian said.

Wilson did not reveal details about the supposed "scary" taxi ride, but needless to say, we all need that ice-cream and Mars Bar every now and then.