Why Mint Feels Cold & Other Flavor Mysteries - Northcutt Dental (2024)

Why Mint Feels Cold & Other Flavor Mysteries - Northcutt Dental (1)

There’s no doubt that when it comes to dental products, mint is the dominant flavor choice. Finding a toothpaste or mouthwash that isn’t spearmint, peppermint, or some made-up version of mint (like arctic blast) is a challenge. The fact is, these products don’t actually need this flavoring to do their work. Which may leave you wondering: Why does mint flavor make your mouth feel cool and fresh, as if your toothpaste was extra effective?

It comes down to a plant’s ability to trick your brain through chemistry. All varieties of mint plant produce a chemical called menthol. This is the substance that gives mint its distinctive flavor. Your body senses cold when a protein called TRPM8 is activated in your nerve cells, which then relay a current signal to your brain that it interprets as a cold sensation. Menthol has the unique ability to activate TRPM8, tricking your nerves into thinking they’re feeling cold when they’re actually not.

Hot peppers make you feel the sensation of heat pretty much the same way. Most hot or spicy foods contain a chemical called capsaicin. This chemical tricks your brain into feeling hot by activating a different protein, called VR1. Because both menthol and capsaicin mess with your temperature sensitivity, they can make you feel numb. That’s why you’ll find them in topical painkillers from the drugstore.

There’s no doubt that mint can help alleviate bad breath, but it also makes you feel extra clean. So why do we associate being cold with healthy teeth? We may never know the scientific reason, but one thing we do know is that when your mouth is dry at warm you can practically feel the bacteria growing, covering your tongue, teeth and gums in muck. It makes sense then that the opposite sensation with signify health. Also, mint has the added benefit of stimulating the production of saliva, which helps wash teeth and remineralize your enamel. This is one reason chewing mint-flavored sugar-free gum can be good for your teeth.

And not to worry if you don’t like mint flavor. You can still take great care of your dental health using toothpastes in other flavors such as cinnamon or bubble gum.

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Why Mint Feels Cold & Other Flavor Mysteries - Northcutt Dental (2024)

FAQs

Why Mint Feels Cold & Other Flavor Mysteries - Northcutt Dental? ›

All varieties of mint plant produce a chemical called menthol. This is the substance that gives mint its distinctive flavor. Your body senses cold when a protein called TRPM8 is activated in your nerve cells, which then relay a current signal to your brain that it interprets as a cold sensation.

Why does my mouth feel cool and minty? ›

A waxy crystalline organic chemical, called menthol, found in peppermint and other mint oils, can somehow bind to TRPM8 directly and activate it. In fact, TRPM8 was first discovered as a protein that responds to menthol and later acknowledged for its role in sensing temperature fall.

Why does mint make your throat cold? ›

The answer, in short, is that menthol tricks our bodies into feeling cold, even though we're not. Both menthol and capsaicin affect the system of sensory receptors that monitor things such as touch, temperature and pain.

What chemical in mint makes it cold? ›

Mint plants such as peppermint (Mentha piperita) produce menthol, a terpene compound with characteristic mint flavor. But, just as capsaicin activates TRPV1, menthol activates a neural receptor called TRPM8, which is primarily responsible for detecting cold temperatures.

Why does mint make my teeth sensitive? ›

Is Mint Bad for Sensitive Teeth? Although mint's strong smell and refreshing flavor can create a cool sensation that might make you concerned about your sensitive teeth, you'll be happy to know that there is no evidence that it has an effect on tooth sensitivity.

Why does mint give a cold sensation? ›

Your body senses cold when a protein called TRPM8 is activated in your nerve cells, which then relay a current signal to your brain that it interprets as a cold sensation. Menthol has the unique ability to activate TRPM8, tricking your nerves into thinking they're feeling cold when they're actually not.

Why do I have a weird minty taste in my mouth? ›

A metallic taste in the mouth may be caused by oral hygiene, nutrient deficiencies, infections, and taking certain supplements. It may also result from health conditions like allergies and nerve damage.

What does mint do to your mouth? ›

Much like chamomile and green tea, rinsing with a mint-infused solution has been found to help ease swelling and counteract bleeding gums. Specifically, the compound menthol, found in mint, seems to help kill bacteria in the mouth and prevent gingival bleeding.

What are the side effects of too much mint? ›

Peppermint can cause some side effects including heartburn, dry mouth, nausea, and vomiting. When applied to the skin: Peppermint oil is likely safe. When given as an enema (rectally): Peppermint oil is likely safe. When inhaled: Peppermint oil is possibly safe when used as part of aromatherapy.

Does mint trigger cold receptors? ›

And scientists now know that menthol actually tricks our brains and mouths into the cool sensation because menthol activates the same receptor on nerve endings that's involved in sensing cold, says David McKemy, a neurobiologist at the University of Southern California.

Is mint cooling for the body? ›

Mint: In its various forms such as peppermint and spearmint, it is widely recognised for its cooling effect. Whether consumed as a tea, added to salads, or used in cooking, mint can provide relief from the heat and promote overall well-being.

Does all mint contain menthol? ›

Every type of mint plant contains menthol, which is responsible for its distinct flavor.

How to rebuild enamel on teeth? ›

6 Tips on How to Remineralize Teeth
  1. Increase Saliva Production. One of the most effective ways to repair tooth enamel is to maximize the amount of saliva you produce. ...
  2. Drink More Water. ...
  3. Use a Remineralizing Toothpaste. ...
  4. Chew Sugar-Free Gum. ...
  5. Eat a Remineralization Diet. ...
  6. Dodge Acidic Drinks.

Is mint an inflammatory? ›

The authors of the review found that mint works against harmful microbes, regulates muscle relaxation, and helps control inflammation. A different review from the same year assessed 12 randomized controlled trials and found that peppermint oil was a safe and effective intervention for pain symptoms in adults with IBS.

What are the symptoms of being allergic to mint? ›

Symptoms of a mint allergy
  • mouth tingling or itching.
  • swollen lips and tongue.
  • swollen, itchy throat.
  • abdominal pain.
  • nausea and vomiting.
  • diarrhea.
Sep 26, 2018

What would cause a minty taste in your mouth? ›

Taste disorder causes include infections, cancer treatments, drugs, and dental problems. Burning mouth syndrome can also cause taste changes and tingling, mimicking a minty taste in the mouth. See your doctor if it persists.

Why do I feel minty inside? ›

Possible causes of a menthol feeling in the chest. Many conditions can cause a menthol or cooling sensation in the chest. These include heartburn, infection, anxiety, and sometimes, a heart problem. A menthol feeling in the chest describes a cool or burning sensation anywhere in the chest.

Why do I feel cold in my mouth? ›

When the temperature in your mouth drops, TRPM8 changes its shape to allow calcium ions to flow into the nerve cell. That triggers a current that goes to the brain. That's what makes you feel the sensation of being cold. But certain natural chemicals can activate TRPM8 on their own.

Why do I have a cold taste in my mouth? ›

Colds, sinus infections, and upper respiratory infections can change the taste in your mouth. If this is the cause, you'll also have symptoms like a runny or stuffy nose, sore throat, and cough. Rest, drink plenty of fluids, and take over-the-counter pain relievers if necessary.

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