How Onions Support Lung Health
Anti-Inflammatory Properties
Inflammation is a major contributor to chronic respiratory problems like asthma, bronchitis, and COPD. Onions are rich in quercetin, a powerful antioxidant that helps reduce inflammation in the airways. This can ease breathing and reduce the frequency of coughing or wheezing.
Natural Expectorant for Cough Relief
One of the traditional uses of onions is as a natural expectorant. Their sulfur compounds may help thin mucus in the airways, making it easier to expel phlegm and clear the lungs. This is particularly beneficial for people dealing with chest congestion from colds or bronchitis.

Antibacterial and Antiviral Effects
Onions contain compounds like allicin that have been shown to fight bacteria and viruses. Regular consumption may support the immune system in protecting against respiratory infections that trigger lung inflammation and coughing.
Antioxidant Power Against Lung Damage
Free radicals from pollution, smoking, or toxins can damage lung tissue. Onions provide antioxidants that neutralize these harmful molecules, potentially protecting lung cells and supporting long-term respiratory health.

Practical Ways to Use Onions for Lung Health
Onion and Honey Cough Syrup
A popular natural remedy involves combining onion juice with honey. Honey soothes the throat while onion compounds help loosen mucus.
How to Make:
- Chop one large onion.
- Mix with 2 tablespoons of honey.
- Let sit for a few hours until it releases liquid.
- Take 1 teaspoon as needed for cough relief.
Onion Tea for Congestion
Onion tea is another traditional preparation for respiratory issues.