The move is a first for a sweets-focused fast food chain, and could give Dunkin' an edge over competitors like Starbucks and McDonald's, reports Leslie Patton at Bloomberg News.
The retailer will sell gluten-free donuts and muffins in all its U.S. stores this year, a spokesman told Patton.
Gluten is a protein complex found in wheat flour. A growing number of people are allergic to the protein, and going gluten-free has become a fad diet endorsed by celebrities like Miley Cyrus.
Domino's offers a gluten-free pizza, while Starbucks has said it's considered adding items to the menu.
Patton points out that the gluten-free items aren't always lower in calories than regular. For instance, a wheat-free donut has 320 calories, compared with 260 for a glazed donut.
Dunkin' Donuts has experienced rapid growth since it started offering specialty coffee drinks and breakfast sandwiches in addition to its standard products.
The company didn't say whether the donut breakfast sandwich would be available in a gluten-free variety.
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