Stomach acid is mainly composed of hydrochloric acid. Hydrochloric acid could literally, eat a hole through laminate tile floors (like the the tile at schools). Now think of that in your throat and on your teeth. Over time, if people throw up constantly (such as bulimics), they will wear away the lining of the esophagus and wear the enamel off of their teeth. [ linkinpark0651's advice column | Ask linkinpark0651 A Question ]
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