As a child, my dentist also warned me about Mountain Dew and gave a specific reason - the presence of ethylenediaminetetraacetic acid (EDTA), used as a stabiliz

As a child, my dentist also warned me about Mountain Dew and gave a specific reason - the presence of ethylenediaminetetraacetic acid (EDTA), used as a stabilizer. His theory was that it would chelate the calcium out of your tooth enamel. Sounds like a bit of dentist lore that gets passed around. Maybe because they use EDTA during root canals to prep the area.