Is Peppermint Tea Good for Your Lungs?

Partly: peppermint tea may feel soothing when your throat is mildly irritated because its warm liquid provides hydration and its menthol can create a cooling sensation, but it has not been shown to improve lung function.

What is the short answer?

peppermint tea can be a comforting drink, but it is not a proven treatment for breathing problems. The cooling sensation associated with peppermint is not the same as a measurable improvement in airflow.

Evidence directly testing peppermint tea for lung health is limited. A study of inhaled essential oils found no improvement in lung function, although its results cannot tell us exactly what happens when someone drinks peppermint tea.

For most adults who tolerate it, peppermint tea can be enjoyed as an ordinary beverage. It should not replace prescribed treatment or an evaluation for persistent breathing symptoms.

How might peppermint tea affect your lungs?

Peppermint contains menthol, which can stimulate cold-sensitive receptors in the nose and throat. This can create a cooling sensation that may make breathing feel more comfortable, even when the airways have not widened. The amount of menthol in a cup of peppermint tea can vary, so the sensation may vary too.

The warm liquid may also soothe an irritated throat, while its water contributes to hydration. Staying hydrated can help keep mucus from becoming too thick, but drinking peppermint tea does not directly remove mucus from the lungs or cure the cause of a cough.

The lungs have their own protective systems: mucus helps trap particles, and tiny hairlike structures called cilia help move mucus out of the airways. The liver and kidneys do most of the body's detoxification, while the lungs and gut help eliminate waste. For more on how to detox your lungs naturally, focus on protecting the lungs from smoke and other irritants rather than relying on a drink-based cleanse.

What does the evidence say about peppermint and lung function?

There is not enough clinical evidence to conclude that drinking peppermint tea improves lung function. Feeling refreshed after drinking it is a subjective experience, not a measurement of how well the lungs are working.

In a 2018 randomized study of 106 healthy participants, researchers compared nebulized peppermint, rosemary or eucalyptus essential oil with no treatment. After 15 minutes, none of the oils improved the measured lung-function results. Participants' perceived changes were associated with their expectations rather than with changes in the measurements.

That study tested inhaled, nebulized essential oils, not peppermint tea. It also involved healthy people, so it cannot establish whether peppermint tea helps people with a respiratory condition. The result is a reason not to assume that a cooling sensation means better airflow; it is not a direct test of the tea.

How much peppermint tea is safe?

There is no established dose of peppermint tea for improving lung function, and more tea has not been shown to provide more respiratory benefit. An ordinary cup is a reasonable way for an adult who tolerates peppermint to enjoy it as a beverage, rather than as a treatment.

Prepare peppermint tea from leaves or a tea bag according to the package directions, and let it cool to a comfortable temperature before drinking. Very hot liquid can burn the mouth and throat. If you have been advised to limit fluids, count peppermint tea toward your fluid allowance.

Peppermint essential oil is much more concentrated than peppermint tea and is not interchangeable with it. Do not swallow essential oil or put it in a nebulizer to try to improve breathing.

Who should be careful with peppermint tea?

Peppermint can worsen heartburn or reflux for some people. If peppermint tea triggers burning or discomfort, avoid it and ask a healthcare professional for advice if symptoms persist. Anyone with a peppermint allergy should avoid it.

If you are pregnant or breastfeeding, considering giving peppermint tea to a child, or taking prescription medication, check with a healthcare professional about regular use. Evidence on the safety of larger or frequent amounts for these groups is limited, and a clinician can consider your circumstances.

People with asthma, COPD or another lung condition should continue their prescribed care; peppermint tea is not a substitute for an inhaler or other treatment. Strong peppermint scents may bother some people's airways. Contact a healthcare professional for a persistent cough, new wheezing, worsening breathlessness or other respiratory symptoms that concern you.

Seek emergency care for severe trouble breathing, blue or gray lips, chest pain, or coughing up blood. Do not wait to see whether peppermint tea helps.