The convenience store chain says its new drink will have 50 percent fewer calories.
Its first flavor will be Fanta Sugar Free Mango.
Company officials say they plans to roll out other flavors throughout the year.
Eight ounces of the new mango drink is expected to have 20 calories.
USA Today says this is the first time 7-Eleven has rolled out a low-calorie line of its Slurpees nationally.
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