Skip to main content

10 Foods That Are Bad for Your Teeth and Gums

When you think of foods that are bad for your teeth, junk food likely comes to mind. But there are other types of foods and drinks that can damage teeth, too. Learn what foods are bad for your teeth and why.

Written by Adrienne Santos-Longhurst

Posted December 20, 2024

Man brushing his teeth with his daughter

You likely know that some foods are worse for your oral health than others, but you may be surprised to learn that so-called junk foods aren’t the only culprits. Certain foods and drinks — healthy and not-so-healthy — can leave your teeth and gums vulnerable to decay and erosion.1

Continue reading to learn more about which foods to limit or stay away from to maintain healthy teeth and gums.

1. Alcohol

Alcohol dries the mouth and weakens the immune system, increasing the chances of gum disease.2 Alcohol drinkers are also more likely to have more gum bleeding, more plaque and larger gum pockets than nondrinkers.2 Drinking too much alcohol is also a predisposing factor for gum cancer.3

2. Carbonated Beverages

Soda and other carbonated beverages — even those that are sugar-free — contain citric acid, phosphoric acid and carbonic acid. These lower the mouth’s pH level, which can cause enamel erosion.4

3. Caffeinated Beverages

The caffeine in coffee, tea and soda is acidic and can cause erosion. Caffeine has also been linked to bruxism (teeth grinding), which can damage teeth. Additionally, tannins, which are responsible for coffee’s dark color, can stain teeth.5

4. Citrus and Other Acidic Foods

Citrus fruits and drinks and other acidic foods, like tomatoes, can irritate your gums and contribute to gum disease.6

5. Hard Candies

Hard candies can break or chip teeth. Unless they are sugar-free, hard candies can also lead to tooth decay and cavities.7

6. Ice

It may be just water, which is good for you, but chewing on ice can chip or break teeth.7

7. Potato Chips

Potato chips and other starchy foods stick to your teeth and can get trapped in between teeth and cause plaque buildup if left too long.7

8. Popcorn

Popcorn kernels can slip down between the teeth and gums and become impacted. Untreated food impaction can lead to gum problems, including abscesses.8

9. Sticky Foods, Including Dried Fruit

Sticky foods can damage teeth because they stay on your teeth longer. These can include healthy sticky foods, too, like dried fruits.7

10. Sugary Foods and Beverages

Plaque bacteria on teeth use the sugar in foods and drinks like candy, soda and sports drinks to produce acid that destroys tooth enamel.7

Dental Problems Caused by Certain Foods

Certain foods and beverages are more likely than others to cause dental problems. For instance, every time we eat or drink, we expose our teeth to bacteria. The bacteria then convert sugars and carbohydrates to acids that begin to erode our tooth enamel. Some foods contain ingredients that stick to our teeth and promote bacteria growth, which can lead to tooth decay.9

There are also foods that cause more immediate and obvious damage to our teeth, like hard foods that can chip and break teeth.7

The following are some of the dental problems that can be caused by consuming certain foods and drinks:9

  • Bleeding gums10
  • Cavities
  • Chipped or broken teeth7
  • Discoloration
  • Dry mouth11
  • Enamel erosion
  • Gum cancer3
  • Infections
  • Irritation6
  • Plaque buildup7
  • Swollen, inflamed gums12
  • Tooth loss
  • Tooth sensitivity

Tips to Maintain Healthy Teeth and Gums

These foods and drinks may be bad for your dental health, but that doesn’t mean you need to avoid them altogether. Doing the following can help you maintain healthy teeth and gums:

  • Brush at least twice a day and floss daily to help reduce plaque buildup.
  • Don’t chew on ice.
  • Drink plenty of water.
  • Eat a healthy, well-balanced diet.13
  • Limit sugar, starches, caffeine and alcohol.
  • Rinse, brush and/or floss after consuming the foods listed above to help remove acid and food debris.
  • Use care when eating hard or very crunchy foods.
  • Use dental probiotics to help promote the growth of good oral bacteria and prevent the growth of bad bacteria.
  • Visit your dentist for routine checkups and cleanings and if you have food stuck between your teeth that’s difficult to remove.

These foods have the potential to cause teeth and gum problems, but if enjoyed in moderation with a little extra care and regular dentist visits, you should be able to maintain your oral health.

Dental Financing With the CareCredit Credit Card

Regular dental checkups are important to help prevent, identify and treat dental problems before they become more advanced. The CareCredit credit card can help you pay for dental exams, cosmetic dental procedures and other costs that insurance doesn’t cover — to help you keep your pearly whites bright and healthy.* Use our Acceptance Locator to find a dentist near you that accepts CareCredit. Make the most of your wellness journey by downloading the CareCredit Mobile App. You can find a provider on the go, manage your CareCredit account and easily access the Well U blog for more great articles, podcasts and videos.

In addition to dental care, you can also use your CareCredit credit card for pet care, cosmetic, vision, hearing, health systems, dermatology, pharmacy purchases, spa treatments and so much more within the CareCredit network. How will you invest in your health and wellness next?

Author Bio

Adrienne Santos-Longhurst is a writer who has been covering health and lifestyle for almost two decades. Her work has appeared in Healthline, Insider, Medical News Today and more.

* Subject to credit approval.

The information, opinions and recommendations expressed in the article are for informational purposes only. Information has been obtained from sources generally believed to be reliable. However, because of the possibility of human or mechanical error by our sources, or any other, Synchrony and any of its affiliates, including CareCredit, (collectively, “Synchrony”) does not provide any warranty as to the accuracy, adequacy, or completeness of any information for its intended purpose or any results obtained from the use of such information. The data presented in the article was current as of the time of writing. Please consult with your individual advisors with respect to any information presented.

© 2024 Synchrony Bank.

Sources:

1 “Nutrition: What you eat affects your teeth,” MouthHealthy. Accessed October 20, 2024. Retrieved from: https://www.mouthhealthy.org/nutrition/food-tips

2 “Alcohol and oral health: What you need to know,” Penn Dental Medicine. June 25, 2023. Retrieved from: https://penndentalmedicine.org/blog/is-alcohol-bad-for-your-teeth/

3 “Gum cancer,” Memorial Sloan Kettering Cancer Center. Accessed October 20, 2024. Retrieved from: https://www.mskcc.org/cancer-care/types/mouth/types-mouth/gum

4 Inchingolo, Angelo Michele et al. “Damage from carbonated soft drinks on enamel: A systematic review,” Nutrients. April 6, 2023. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10096725/

5 “Is caffeine bad for your teeth?” Prescott Dentistry. May 31, 2024.  Retrieved from: https://prescottdentistry.com/is-caffeine-bad-for-your-teeth/

6 “The worst foods to eat for gum health,” Dr. Scott Evans. Accessed October 20, 2024. Retrieved from: https://www.straightortho.com/the-worst-foods-to-eat-for-gum-health

7 “Top 9 foods that damage your teeth,” MouthHealthy. Accessed October 20, 2024. Retrieved from: https://www.mouthhealthy.org/nutrition/9-foods-that-damage-your-teeth

8 “Impacted food in your gums? Why this happens and how to treat it,” Eastland Dental Center & Professional Dental Center. October 8, 2021. Retrieved from: https://www.eastlanddentist.com/impacted-food-in-your-gums-why-this-happens-and-how-to-treat-it

9 “Tooth decay,” National Institute of Dental and Craniofacial Research. October 2024. Retrieved from: https://www.nidcr.nih.gov/health-info/tooth-decay

10 “Bleeding gums: 5 possible causes and what to do about it,” The Tooth Doc. February 3, 2022. Retrieved from: https://2thdoc.org/bleeding-gums-5-possible-causes-and-what-to-do-about-it/

11 “Dry mouth,” Mount Sinai. April 27, 2023. Retrieved from: https://www.mountsinai.org/health-library/symptoms/dry-mouth

12 “Gums — swollen,” Mount Sinai. March 31, 2024. Retrieved from: https://www.mountsinai.org/health-library/symptoms/gums-swollen

13 “Oral health,” World Health Organization. November 6, 2024. Retrieved from: https://www.who.int/news-room/fact-sheets/detail/oral-health