Famous for its abundance of skyscrapers, megamalls and lavish real estate, the desert metropolis of Dubai is growing in another, less-appealing way: Over half its residents are overweight. In an effort to help people shed the flab, local government officials announced a 30-day challenge in which it promises to pay participants a gram of gold for every kilogram of weight lost.

 

That’s an estimated $41 for every two pounds or so, based on the going rate for gold. The deadline to sign up is this Friday, July 19, the Associated Press reports, and health care providers will be on hand to suggest healthy living recommendations for the month-long challenge. Dubai official Hussain Lootah said there’s no limit on the golden payout, but participants must lose at least two kilograms by August 16.