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10 Foods Made With The Subway Yoga Mat Chemical

Subway's definitely not the only one.

Subway vowed last week to remove from its food a chemical that's also used to make foam plastics like yoga mats and shoe soles.

Olga Nayashkova

The substance, azodicarbonamide, is commonly used among fast-food chains as a dough conditioner because it makes bread more elastic. Subway's promise to remove it comes after a food blogger's petition went viral online and gathered more than 78,000 signatures in just a few days.

Even though the additive is USDA- and FDA-approved for use in food, the Center for Science in the Public Interest (as well as New York Sen. Chuck Schumer) want azodicarbonamide banned from food completely because of a slight risk that it can cause cancer. (It's already banned in Europe.)

But Subway is far from the only chain using it. Here are 11 more.

1. McDonald's buns

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McDonald's uses it in its regular bun, bakery-style bun, Big Mac bun, sesame seed bun, bagel, and English muffin.

2. Chick-fil-A sandwiches

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Chick-fil-A puts it in the bread used for its chargrilled chicken sandwich, chicken salad sandwich, and chargrilled chicken club sandwich.

3. Burger King buns

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Burger King adds it to its specialty buns, artisan-style bun, sesame seed bun, croissant, English muffin, French toast sticks, and homestyle Caesar croutons.

4. Dunkin' Donuts pastries

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Dunkin' Donuts puts it in danishes, croissants, and Texas Toast. But maybe it'll stop. The chain told CNBC, "We are evaluating the use of the ingredient as a dough conditioner in our products and currently discussing the matter with our suppliers."

5. Wendy's bread

Wendy's puts it in bagels, premium toasted buns, sandwich buns, and panini bread.

6. Arby's buns

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Arby's uses it in the sesame seed bun, onion bread, mini bun, marble rye bread, honey wheat bread, harvest wheat bun, croissant, and French toast sticks.

7. Jack in the Box bread

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Jack in the Box makes its regular bun, bakery-style bun, jumbo bun, grilled sourdough bread, and croissant with azodicarbonamide.

8. Carl's Jr. buns

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Carl's Jr. uses it in the plain bun, sesame seed bun, honey wheat bun, sourdough bread, croissant, and French Toast Dips.

9. Hardee's bread

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Hardee's adds it to its sourdough bread, hot dog bun, seeded bun, wheat bun, and croissant.

10. White Castle's bread

New Line Cinema

White Castle adds it to its sandwich buns, French Toast Sticks, Cloverhill Cheese Danish, Cloverhill Big Texas Cinnamon Danish, and Awrey Grande Cinnamon Swirl.

Sorry, dude.

CORRECTION: One item has been removed from this list: Pizza Hut told BuzzFeed they removed azodicarbonamide from its breads in 2011. The company has not yet made the updated ingredients list public.