5. Flavored chips
Not only are they fatty, salty, and nutritionally worthless, they‘re also rather rough on your teeth. From all points, flavored chips are really bad for your oral and general health.
First, hard chips can make cuts inside the mouth along the gum line, and as refined carbs, they are literally food for mouth bacteria to feed on. The worst is yet to come, because the flavorings, which are often acidic, act like sandpaper on your teeth, Dr. Rodriguez says. And the more extreme the flavoring, the worse it is. Instead, you should try some nuts.