What Does Eating Cornstarch Do To Your Teeth?

If you’re like me, you might be wondering what does eating cornstarch do to your teeth. I mean, it’s not like sugar or anything, right?

Well, as it turns out, cornstarch can actually be pretty bad for your teeth.

In this post, we’ll take a closer look at what happens when you eat cornstarch and how to protect your teeth from the damage it can cause.

A cup of cornstarch with raw corn in the background. What does eating cornstarch do to your teeth?

What does eating cornstarch do to your teeth?

Eating cornstarch can potentially damage your teeth in a few ways.

  • First, cornstarch is a starch, and starches can be broken down by bacteria in your mouth into acids. These acids can erode the enamel on your teeth, which can lead to cavities.
  • Second, cornstarch is sticky. This means that it can easily get stuck in the grooves and crevices of your teeth, where it can provide a breeding ground for bacteria. The bacteria can then produce more acids, which can further damage your teeth.
  • Finally, cornstarch can be abrasive. This means that it can wear away at the enamel on your teeth over time. This can lead to cavities and other dental problems.

It is important to note that eating cornstarch in moderation is unlikely to cause any significant damage to your teeth. However, if you eat cornstarch on a regular basis, or if you chew on it, you may be more likely to develop cavities or other dental problems.

Here are some tips to help protect your teeth from the damage that cornstarch can cause:

  • Brush your teeth after eating cornstarch.
  • Floss your teeth regularly.
  • See your dentist for regular checkups and cleanings.
  • Avoid chewing on cornstarch.

If you are concerned about the impact of cornstarch on your teeth, you should talk to your dentist. They can advise you on how to eat cornstarch safely and minimize the risk of dental problems.

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What does cornstarch do to your teeth if you brush them immediately after eating it?

If you brush your teeth immediately after eating cornstarch, the starch will be removed from your teeth and will not have a chance to provide a food source for bacteria.

This will help protect your teeth from cavities and decay.

It is still important to floss after eating cornstarch, as the starch can still become stuck between your teeth.

Flossing will remove any cornstarch that may be stuck between your teeth and help prevent cavities.

Can I eat cornstarch every day?

No, eating cornstarch every day is not recommended. Cornstarch is primarily a source of carbohydrates and lacks many essential nutrients.

Consuming it in excessive amounts can lead to an unbalanced diet and potential health concerns.

Cornstarch is commonly used as a thickening agent in cooking and baking, and it is generally safe to consume in small quantities as part of a well-rounded diet.

However, it is important to keep in mind that cornstarch is a highly refined and processed product. It is low in fiber, protein, vitamins, and minerals, which are crucial for maintaining good overall health.

Relying heavily on cornstarch or any single ingredient as a significant part of your daily diet may result in nutrient deficiencies and imbalances.

It is advisable to focus on a diverse range of whole foods, including fruits, vegetables, whole grains, lean proteins, and healthy fats, to ensure you are getting a wide array of essential nutrients.

If you have specific dietary concerns or are considering making significant changes to your diet, it is recommended to consult with a healthcare professional or a registered dietitian who can provide personalized advice based on your individual needs and health goals.

What are some ways to protect my teeth from sugary or acidic foods?

Here are some ways to protect your teeth from sugary or acidic foods:

  1. Brush your teeth twice a day with fluoride toothpaste. Fluoride helps to strengthen your teeth and make them more resistant to decay.
  2. Floss your teeth once a day. Flossing removes plaque and food particles from between your teeth, where they can cause decay.
  3. See your dentist for regular checkups and cleanings. Your dentist can look for signs of decay and other dental problems, and they can clean your teeth professionally.
  4. Avoid sugary foods and drinks. Sugary foods and drinks feed the bacteria in your mouth, which produce acids that can damage your teeth.
  5. Limit your intake of acidic foods. Acidic foods can also damage your teeth. Some examples of acidic foods include citrus fruits, tomatoes, and vinegar.
  6. Drink water after eating sugary or acidic foods. Water helps to wash away the acids and food particles that can damage your teeth.
  7. Use a straw when drinking acidic beverages. This will help to keep the acids away from your teeth.
  8. Chew sugar-free gum. Sugar-free gum helps to increase saliva production, which can help to wash away acids and food particles.
  9. Eat cheese after eating sugary or acidic foods. Cheese helps to neutralize acids in your mouth.

By following these tips, you can help to protect your teeth from sugary or acidic foods and prevent decay.

Here are some additional tips:

  • Don’t swish or hold sugary drinks in your mouth. This allows the sugars to come into contact with your teeth for longer, which increases the risk of decay.
  • Don’t eat sugary foods or drinks right before bed. This gives the acids more time to damage your teeth while you’re sleeping.
  • If you have to eat sugary foods or drinks, try to eat them with a meal. This will help to dilute the sugars and acids with saliva.

If you have any concerns about the health of your teeth, be sure to talk to your dentist. They can advise you on how to best protect your teeth and prevent decay.

Health benefits of eating cornstarch:

Cornstarch itself does not offer significant health benefits when consumed as a standalone food.

It is primarily used as a thickening agent in cooking and baking rather than being consumed on its own.

However, cornstarch can be part of a well-balanced diet when used in appropriate quantities and in combination with other nutritious foods.

Here are some potential benefits:

  1. Source of Energy: Cornstarch is a carbohydrate-rich food. Carbohydrates are the body’s primary source of energy, and consuming cornstarch can provide a quick supply of readily available energy.
  2. Gluten-Free Alternative: Cornstarch is naturally gluten-free, which makes it a suitable option for individuals with gluten sensitivity or celiac disease.
  3. Thickening and Stabilizing Agent: Cornstarch is commonly used in cooking and baking to thicken sauces, soups, and gravies. It can help create a desired texture and consistency in various dishes.
  4. Calming Skin Irritation: Cornstarch can be applied topically to soothe skin irritations, such as rashes or sunburns. It may help absorb excess moisture and provide a cooling effect.

While cornstarch may have some practical uses, it is important to note that it is a refined and processed product that lacks many essential nutrients found in whole grains.

Therefore, it should not be relied upon as a significant source of nutrition.

It is recommended to consume a varied diet that includes a wide range of whole foods, such as fruits, vegetables, whole grains, lean proteins, and healthy fats, to obtain optimal nutrition and health benefits.

Can cornstarch be bad for you?

While cornstarch is generally safe to eat, there are a few potential side effects.

If you have diabetes, you should be careful with cornstarch as it can affect blood sugar levels.

Cornstarch can also cause gas and bloating. If you are prone to these issues, you may want to avoid cornstarch.

Finally, cornstarch can contain harmful chemicals if it is not cooked properly. Make sure to cook cornstarch thoroughly before eating it.

Some FAQs:

Is eating cornstarch bad for your teeth?

Consuming cornstarch on its own is not directly harmful to your teeth.
However, excessive consumption of starchy substances like cornstarch can contribute to dental problems indirectly by promoting acid production and bacterial growth, which can lead to tooth decay and cavities.

Can eating cornstarch cause cavities?

Eating cornstarch alone is unlikely to cause cavities.
However, if consumed in large quantities or as part of a diet high in sugars and starches, it can contribute to the development of cavities due to the increased exposure to sugars and the subsequent acid production by oral bacteria.

How does cornstarch affect dental health?

Cornstarch, when broken down into sugars in the mouth, can provide a food source for bacteria that produce acid.
This acid can erode tooth enamel and lead to dental issues like cavities and tooth decay.
It is important to maintain good oral hygiene and limit the consumption of sugary and starchy foods to promote dental health.

Can cornstarch replace toothpaste?

No, cornstarch should not replace toothpaste.
Toothpaste contains important ingredients like fluoride that help strengthen tooth enamel and protect against cavities.
Cornstarch lacks these specific dental benefits and is not formulated to provide the same level of oral health protection as toothpaste.

Is cornstarch better for teeth than sugar?

While cornstarch does not directly contain sugar, it can be broken down into sugars in the mouth.
Therefore, from a dental perspective, excessive consumption of cornstarch can have similar effects on teeth as consuming sugar, as both can contribute to acid production and dental issues.
It is important to limit the intake of both sugars and starchy substances for optimal dental health.


Consuming cornstarch on its own does not have a direct impact on your teeth.

However, it is important to note that excessive consumption of cornstarch or any starchy substance can indirectly contribute to dental issues.

Starches can break down into sugars in the mouth, which can lead to the growth of bacteria and the production of acid, causing tooth enamel erosion, cavities, and tooth decay.

Maintaining a balanced diet, practicing good oral hygiene, and limiting the intake of sugary and starchy foods are key to protecting your teeth from dental problems.

While cornstarch itself does not provide any specific dental benefits, it is best to focus on a diverse range of nutritious foods for overall oral health.

Regular dental check-ups and professional cleanings are also vital for maintaining healthy teeth and gums.

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