6. Azodicarbonamide
Source: Huffington Post
Found in: Breads, frozen dinners, boxed pasta mixes, and packaged baked goods.
Why it’s dangerous: Used to bleach both flour and foamed plastic (yoga mats and the soles of sneakers), azodicarbonamide has been known to induce asthma.
Where it’s banned: Australia, the U.K., and most European countries.