Sneaky Dental Decay: 5 Surprising Foods that Cause Cavities

November 17, 2025

Woman holding potato chips, wearing surprised expression

In your efforts to reduce your risk of cavities, you may be careful about how much candy, cake, and other sweet treats you consume. That is a wise precaution! However, added or refined sugar is not the only thing you need to watch out for. What are some surprising foods that can cause cavities? This blog post discusses five.

Chips and Crackers

While chips and crackers may seem like harmless snacks, they can actually be detrimental to your dental health. These starchy foods break down into sugar as you chew, providing a fuel source for cavity-causing bacteria. Additionally, chips and crackers tend to stick to your teeth, lingering in crevices and making it easier for bacteria to produce acids that erode enamel.

Dried Fruit

Dried fruit is frequently marketed as a healthy alternative to candy, but it can be just as risky for your teeth. The dehydration process concentrates the natural sugars, making dried fruit especially sticky and prone to clinging to tooth surfaces. This stickiness allows sugar to remain in contact with your enamel for extended periods, thereby increasing the risk of cavities.

Citrus Fruit

Citrus fruits such as oranges, lemons, and grapefruits are packed with vitamin C, but their high acidity can wear away dental enamel. Frequent consumption of citrus fruit exposes your teeth to acid, which softens enamel and makes it more susceptible to decay. If you eat these fruits throughout the day, the repeated acid exposure can compound the damage and lead to cavities over time.

Sports Drinks

Sports drinks might seem like a smart choice for hydration, especially during physical activity, but they often contain high levels of sugar and acid. The combination of sugar and acid creates an environment in your mouth where bacteria thrive and produce harmful acids. Sipping sports drinks slowly or frequently increases the time your teeth are exposed to these cavity-promoting substances.

Pasta Sauce

Pasta sauce, particularly varieties made with tomatoes, can contribute to dental decay in two ways. First, tomatoes are naturally acidic, which can erode enamel and weaken teeth. Second, many commercial pasta sauces contain added sugars that further feed bacteria, making your favorite Italian meal a hidden danger for cavities.

You do not have to stick to a strict diet to lower your risk of cavities, but you should be mindful of what you are eating! Enjoy all things in moderation and stick to a good oral hygiene routine; your healthy habits will likely reward you with a strong smile!

Meet the Practice

Dr. Austin Lee of Orbis Dental Group is proud to provide top-quality holistic dental services for the San Antonio community. Whether you are looking to improve your oral health or want advice on how to maintain it, Dr. Lee and our team would be happy to assist you. To learn more about us or to request an appointment, contact our office at 210-496-1919.