One common stereotype about dentists is that we simply don’t want you to eat sugar or candy. In reality, many other foods are far worse for your teeth—some even masquerade as health foods or snacks for children.
Candy isn’t the sole culprit. In my practice I often include a small square of organic dark chocolate (70% cocoa) in patient goodie bags alongside floss and a toothbrush. That kind of chocolate can be part of a tooth-friendly routine when consumed in moderation.
The best way to preserve a youthful, healthy-looking smile is to avoid certain foods that promote decay and erosion. Below are some common offenders you’ll want to remove from your shopping cart and keep away from your teeth.
1. Saltine Crackers
Surprisingly, saltine crackers rank among the most cavity-promoting foods. These simple starches break down quickly into sugar, feeding oral bacteria. When bacteria metabolize these sugars they produce acids and unpleasant odors, contributing to cavities and bad breath. Simple starches are especially favored by cavity-causing bacteria.
2. Goldfish Crackers
Goldfish and other white crackers cause similar problems. Starchy snacks not only convert rapidly to sugar but also tend to adhere to teeth and lodge in crevices. That stickiness allows bacteria to feed for extended periods until proper brushing and flossing occur. For these reasons, white crackers aren’t an ideal snack for kids.
Healthier, portable snack options for children include almonds, baby carrots, apple wedges with almond butter, cheese squares, and small pieces of dark chocolate. These choices contain more complex carbohydrates or protein and fat, so they digest more slowly and are less likely to fuel cavities.
3. Diet Coke
Just because a soda is sugar-free doesn’t mean it’s safe for teeth. The acids in carbonated beverages erode tooth enamel over time. As a simple demonstration, a penny placed in soda will gradually corrode. To reduce harm, limit soda consumption and rinse your mouth with water after drinking—don’t brush immediately, since brushing right away can worsen enamel wear when surfaces are softened by acid.
4. Red Bull and Other Energy Drinks
Energy and many sports drinks—such as Vitamin Water, Gatorade, and Red Bull—are highly acidic. Their acidity can have a corrosive effect on enamel. Research testing enamel exposure to these beverages found that some samples showed signs of damage within days. In that study, energy drinks caused roughly twice the enamel damage as sports drinks.
5. Dried Fruits
Dried fruits like apricots and plums are often labeled healthy, but they concentrate natural sugars when the water is removed. This concentration makes them sticky and gummy—similar to caramel—so they cling to teeth and trap sugars against enamel, providing a prolonged food source for cavity-causing bacteria. Fresh fruit is a better option when possible.
Mark Burhenne, DDS
For a concise list of tooth-friendly foods, consult reputable dental nutrition resources and choose snacks that reduce sugar exposure, minimize acidity, and avoid prolonged contact with teeth.
Learn More:Foods to Eat—And Foods to Avoid—to Heal Cavities Naturally