Are you familiar with azodicarbonamide? It’s a chemical that bleaches flour and conditions dough. It’s banned in many other countries, including the U.K., Europe, Australia and Singapore, because it can cause respiratory problems. Here in the United States, the USDA and the FDA say it’s safe to consume.

Azodicarbonamide is not a chemical that’s used only in food, though. It’s also used in rubber products like yoga mats and soles of shoes. It really doesn’t seem like the same chemical should be used in both food and shoes, does it?

Subway, the largest fast-food chain in the world, has decided to remove azodicarbonamide from its bread products. The company says it's already in the process of removing it, and expects to have it out of all bread products soon.

The announcement from Subway came just days after the Food Babe website started a petition to have the fast-food chain remove azodicarbonamide from its products. Vani Hari, the owner of Food Babe, explained more about the chemical and why she was calling on Subway to stop using it in breads in a video she posted just two days ago. (The day after, Subway made its announcement that officials are already in the process of removing it.)

Subway isn’t the only fast-food chain that has used the chemical in its breads. McDonald's, Wendy’s, Arby’s and even Starbucks use it in some of their products, according to Hari, who has an informative Azodicarbonamide 101 post on her site.

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Robin Shreeves ( @rshreeves ) focuses on food from a family perspective from her home base in New Jersey.

Subway removes chemical from bread that's also used in yoga mats
Azodicarbonamide is a chemical that's used in foam rubber products, but in the U.S., it can also be found in breads.