The Huffington Post
February 27, 2014
Footlong fans breathed a sigh of relief at the beginning of February, when sandwich chain Subway announced that it was removing azodicarbonamide — a chemical used in shoe rubber and yoga mats — from its bread.
Though the World Health Organization has said that the chemical is safe for human consumption, some studies have suggested it could be linked with asthma and skin and respiratory problems.
And when the chemical is baked, it forms another chemical that has been linked to cancer in animal studies, CBS News pointed out.
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