A blogger's protest has forced Subway to remove a chemical found in shoe soles and yoga mats from its bread. 

ABC News reports that Vani Hari, who had reportedly been researching the Subway's ingredients since 2012, was "shocked" to discover azodiacarbonamide on the company's labeling. Hari told ABC News that it "[produces] the air within the foam of a yoga mat," and "does the same thing" in bread. 

ABC News notes that the additive has been tied to allergies, asthma and respiratory issues. Though legal in the U.S., it's been banned in both Australia and Europe. 

After creating a petition on her blog, Food Babe, Hari obtained over 50,000 signatures. After reviewing Hari's signed petition, Subway elected to remove azodiacarbonamide: 

The complete conversion to have this product out of the bread will be done soon," Subway said in a statement. The company said the move had nothing to do with the protest and that it was "already in the process of removing azodicarbonamide as part of our bread improvement efforts.

Hari was very pleased with Subway's decision:

I commend Subway for finally responding to me and now over 57,000 concerned citizens. Their swift action is a testament to what power petitions and individuals who sign them can have," Hari said. "I'd like to note that current Subway sandwiches still have this ingredient, and urge everyone not to eat their sandwich bread until they have finally removed the chemical.

[via ABC News]