(Chick-fil-A is looking to capitalize on a diet trend that has swept the US.Courtesy of Chick-fil-A)

The gluten-free craze has hit Chick-fil-A.

The fast-food chicken chain announced Monday that it had begun serving a gluten-free bun at restaurants across the US.

Its new bun is made with quinoa and amaranth and sweetened with molasses and raisins. It contains 150 calories and costs an additional $1.15.

Chick-fil-A is looking to capitalize on a diet trend that has swept the country.

According to a study done by JAMA Internal Medicine in 2016, one in five people in the US has eliminated gluten from his or her diet. Only 1% of the population actually has been diagnosed with a celiac disease, an autoimmune disorder that prevents people from eating gluten.

Chick-fil-A will be one of a few fast-food restaurants to offer a gluten-free bread alternative. Shake Shack also offers a gluten-free bun.

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