Some of the most normal foods could be absolutely awful for your pearly whites and gums. We caught up with top dentists to see which foods they steer clear of—and some are pretty surprising.

Popcorn

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Put down that bowl of microwave popcorn, friends. “Countless number of people come in with cracked teeth from eating half-popped popcorn kernels, not to mention the sneaky husk,” says Jonathan Neman, DDS, a dentist in New York City “Popcorn husk is notorious for finding its way in between teeth and causing gum pain, too.”

Dried fruit

Dried-fruitGamzova Olga/Shutterstock

As tasty as those dried pineapples are and no matter how much you love that fiber boost from prunes, dried fruit is a disaster for teeth. “Not only are the sugars concentrated, but they are very sticky and sit into the grooves of your molars causing cavities,” explains Dr. Neman. Check out these 13 things dentists want you to know.

Sweet coffee drinks

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Those venti cups with extra pumps of the sweet stuff are your worst dental nightmare. “Constant exposure to the milk and sugar over the course of an hour or more make it difficult for the saliva to combat against the sugars and acids produced by the bacteria in our mouths,” Dr. Neman says. “Saliva is the great protector of our teeth, and with the constant sugar attacks from taking sips of sugary drinks, over time the salivary glands fail to keep up.” Yikes!