Does drinking milk make cold symptoms worse? Expert clarifies myth

Popular belief that drinking milk causes more mucus production has never been supported by scientific studies

The popular belief that drinking milk during a cold can worsen symptoms and increase mucus production is more linked to perception than to real effects on the body.

Dr. Julie Baughn, from the Mayo Clinic, explains to Medical Xpress that milk consumption does not cause the body to produce more phlegmalthough mucus can naturally thicken during respiratory infections.

The feeling of increased mucus may be caused by temporary coating effect of milk on the mouth and throatnot due to an actual increase in mucus production.

milk, milk — The sensation that drinking milk makes a person with a cold produce more phlegm has never been proven by science (Image: DONOT6_STUDIO/Shutterstock))

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Drinking milk can help fight colds

Although a 2019 study suggested that some people may experience increased mucus production after consuming dairy productsmost research found no clear connection between milk and increased mucusboth in healthy people and in those with respiratory infections;
Therefore, the recommendation to avoid drinking milk during respiratory illnesses has no supportunless there is an intolerance to dairy products;
In fact, milk can offer benefits during a cold or when a person has a sore throat, helping to soothe an irritated throat and providing important nutrients to the body;
If there are concerns about how dairy products affect congestion, it is best to monitor symptoms or consult a doctor.

Other effective home remedies for colds include staying hydrated, resting, using a humidifier, and gargling with salt water.