3. Avoid acidic food and drinks
Exposure to red wine, pop, fruit juices and acidic foods—such as oranges and pickles—can put your enamel under constant attack. Limit these foods and drinks, and try to brush about 20 minutes after eating them (not earlier, or the brushing may hurt your enamel further). Even if your teeth aren’t yet feeling sensitive, it’s a good idea to be cautious about consuming certain foods and drinks, as enamel loss is irreversible.