...from your diet. It's not just the sugar in soda that harms your teeth. Acids in both regular and diet sodas erode tooth enamel, according to researchers at Southern Illinois University and Men's Health (June 2007). They made the discovery after testing 20 commercial soft drinks. Citrus-flavored sodas (think lemon-lime) were more harmful than colas. Even the diet versions of these fruity drinks caused significant enamel loss. The culpril: high levels of citric and phosphoric acids, which eat away a thte outer layer of teeth. Can't shake your soda habit? Go with Diet Coke. It contains such low amounts of acid that it has less impact on enamel than tap water.
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