West 85th Dental
8561 8A Ave SW Calgary AB T3H 0V5 (403) 246-5545

(587) 355-4332

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What You Can & Can’t Eat with Invisalign Hero

What You Can & Can’t Eat with Invisalign

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How well you can bite down and how straight your teeth are can affect more than just your feeling at that moment. It can affect your oral health. Invisalign serves as an excellent choice for dental patients seeking relief from problems with dental alignment. If you can take care of these issues, you should be better off at your next dental exam.

But the way they’re worn, continuously for over 22 hours a day, means you have to change up your diet. Your meals will have to be limited to times of the day when you can thoroughly brush your teeth. Most foods you can eat worry-free, brushing away residue with ease. But some foods can escape your best efforts to clean.

woman removing invisalign appliance while smiling

Sweet Food & Drink

There’s good reason for brushing thoroughly before you place your Invisalign aligners back in. Small particles of food leftover in your mouth can become food for bacteria residing on your teeth and gums.

You can probably guess that very sweet foods leave plenty of sugars for bacteria to thrive on. Cavities can develop very quickly with the level of plaque buildup.

Anything with high sugar content counts, including cake, ice cream, sugary gums, soda pop, fruit, and dessert of any kind. You may want to give up anything sugary for the duration of Invisalign treatment. Otherwise, your brushing and flossing regimen after you indulge has to be consistently exceptional. 

Bacteria thrive in warm, dark, enclosed spaces, especially if they have something to consume. The thin, plastic inside surface of your aligners seals them in, so to control their growth, you have to keep your mouth as clean as possible.

Plaque is the byproduct of their multiplication, and it can lead to tooth decay. Many foods help with plaque development, especially sweets and alcohol.


Alcohol has trace sugars that can feed plaque. While there’s not much conclusive evidence that alcohol itself decays teeth, dentists can tell when a patient has been enjoying even moderate drinking. Having an alcoholic drink between meals won’t save you a trip to the bathroom for brushing and flossing once it’s time to put your aligners back in.

Clear spirits like vodka may look like water, but it can dramatically aid plaque development. Even a dash of lime juice in water can lead to plaque. Having a clear spirit won’t save you from extra brushing either.

Staining Food & Drink

You may want to avoid unsightly staining while you’re wearing Invisalign. Otherwise, you might find yourself needing professional teeth whitening once they’re aligned.

It can be subjective when you’re trying to pick a dental shade that’s right for you. Still, you might not be happy with changes to your dental shade after staining becomes a byproduct of your journey with Invisalign. A few alcoholic drinks and food can stain your Invisalign aligners as well as your teeth.

Several prominent alcoholic spirits (beer, mead, whiskey, etc.) contain chromogens, which can transform into pigments. Pigments, whether transforming from chromogens in alcohol or naturally occurring in other foods, can then cause extrinsic staining, where pigments infiltrate your teeth’s surface, the enamel layer.

Food and drink containing pigmentation can include:

  • Coffee
  • Chewing tobacco
  • Blueberries, blackberries, cherries, pomegranates
  • sports drinks
  • Soy sauce, curry sauce, and tomato sauce
  • Several types of tea, especially black tea

Smoking & Vaping

close up of woman vaping on a green background

Tobacco is effective at discolouring your teeth when chewed, and smoking it (or smoking cannabis) can also stain quickly leave stains. Vaping substances can do the same thing.

If you’re putting your Invisalign back in your mouth, you won’t want these foods or oral substances leaving pigments behind. Rinsing with water and then brushing your teeth can help. But avoiding them until you’re finished with Invisalign might be better.

Foods Interfering with Invisalign’s Fit

The orthodontic function of Invasalign relies on a careful fit between the aligner appliances and your teeth. Some foods are so chewy that they stick to small spaces in between your teeth and disrupt the gentle pressures responsible for realigning your teeth. 

Sticky Foods

Sticky, chewy foods like taffy, chewing gum, or caramel are some of the main culprits for this kind of orthodontic interference. Even your best efforts to clean your teeth might not be enough to remove it all altogether—before you reinsert your aligners.

Stringy Foods

Meat or vegetables like steak, spinach, chicken, soft corn niblets, or asparagus that can get stuck in between your teeth are other factors. They can jam the spaces between your teeth open, changing the way the pressure in your appliance works. You could floss to remove them, but it might be better to choose other dishes while you’re using Invisalign.

Hard Foods

Anything overly crunchy, like unpopped popcorn kernels or ice cubes can damage your teeth, possibly chipping and cracking them. Damage might require fillings, bonds, or other restorative work. If they have any damage, it could change the pressure between your teeth.

Hot Food & Drink

If you’re going to drink water with no additives like lime juice, you can leave your aligners in. It won’t cause plaque or stick in any way. But the water can’t be hot. A light tea, aside from the kind of staining mentioned earlier, could warp your aligners. The plastic in them is designed for body temperature, so a hot beverage, even pure hot water, can’t make contact with your aligners.

Cool Water Might Be All You Need

Invisalign’s hygiene and dietary requirements can be demanding, but it’s well worth the time. After all, if your strictness prevents restorative work or teeth whitening, you’ll probably be glad you planned meals carefully. Invisalign looks great, granting a beautiful smile. You can make it through the diet if you try. Ask your dentist, and we can go from there!


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  • Written by Dr. Reena Kaloti

    Dr. Kaloti enjoys helping people, both at personally and professionally, and have fun while doing so. She always knew she wanted a job that allowed her to do that, and spent her childhood babysitting, lifeguarding, teaching swimming lessons, and volunteering in the geriatrics unit of her local hospital. She enjoys working with patients of all ages.

    Dr. Kaloti started studying dentistry in 2000 and graduated from the University of Saskatchewan with her DMD. After practicing dentistry for five years, she decided to take some time to focus on building her family. When she returned to work, Dr. Kaloti and Dr. Minhas decided to partner up and open up West 85th Dental. Their vision was to create a warm, inviting office and a pleasant and relaxing experience that would make their patients look forward to visiting.

    At West 85th Dental, we pride ourselves on providing comprehensive dental care to all our patients by providing thorough examinations, explaining our findings clearly, educating our patients about oral hygiene, and providing multiple treatment options that allow our patients to make educated decisions about their health and care.

    When Dr. Kaloti is not seeing patients, she spends her time doing charity runs, water sports, pilates, and spending time with her family.

    More Articles by Dr. Reena Kaloti

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