Foods That Feed Healthy Teeth–or Cavities

Your mouth requires a balance of bacteria and saliva to keep teeth healthy, so feed them right

Staying hydrated helps you produce the saliva that helps you ward off gingivitis and prevent harmful bacteria from forming around your teeth and gums. Tania Kolinko/Shutterstock

According to the National Library of Medicine, tooth decay is the single most common chronic childhood disease. It can also become a pervasive issue for older folks.

Tooth decay happens when decay-causing bacteria in your mouth encounter sugars and starches from foods and drinks and form acidic fluids. These fluids attack the surface of your teeth (the enamel), thereby causing them to lose minerals. If untreated, this loss in minerals can result in small holes appearing in your teeth (cavities). Tooth decay can lead to pain, infections, and tooth loss.