The world's largest coffee chain Starbucks Corp said it would serve a stevia-based, zero-calorie sweetener at select cafes in the U.S. and Canada.

The "Nature Sweet" packets by Whole Earth Sweetener Co will be available in nearly 9,000 Starbucks locations in the U.S. and Canada. (http://bit.ly/2clBOVe)

Starbucks had 15,300 company-operated and licensed stores in the Americas region, as of June.