In times when access to medications was limited, our ancestors relied on what they had at hand, and onion, though humble, became a true natural remedy. Raw onion juice was one of the most powerful remedies for respiratory ailments, especially for lungs and persistent coughs that wouldn’t relent even after days. Today, modern research supports many of the healing properties of this forgotten remedy.
Benefits of Raw Onion Juice
1. Powerful Natural Expectorant
Onion juice stimulates the elimination of mucus from the respiratory tract. This effect is due to the volatile sulfur compounds and quercetin, which have the ability to thin and mobilize bronchial secretions. After just a few doses, many people experience an improvement in breathing and a reduction in coughing. This is especially helpful in cases of bronchitis or prolonged productive cough.
2. Antimicrobial Properties
Onion contains allicin, a compound with antibacterial and antiviral action. Consuming raw onion juice helps combat respiratory infections caused by bacteria or viruses. Studies show that allicin has a broad spectrum of activity, being effective against common pathogens in respiratory infections, such as Streptococcus pneumoniae and Haemophilus influenzae.
3. Calms Persistent Cough
Dry or irritating cough can be alleviated with onion juice due to its soothing effect on irritated mucous membranes. Onion reduces inflammation in the respiratory tract and inhibits the cough reflex, especially in cases where coughing occurs in nocturnal fits.
4. Improves Lung Oxygenation
According to some researchers, regular consumption of foods rich in quercetin (such as onion) contributes to better cellular oxygenation and reduces lung inflammation. Onion juice can be beneficial for individuals with reduced lung function or chronic inflammation.
5. Supports Respiratory Immunity
Onion is rich in antioxidants that strengthen the immune system. Compounds act directly in the respiratory tract, reducing the incidence of recurrent infections. Raw juice provides a high concentration of active nutrients, unlike cooked onion, where some active substances are destroyed.
What Do Studies Say?
1. Study Published in Journal of Ethnopharmacology, 2020
A study conducted by Turkish researchers evaluated the effect of onion extract on animal models with induced lung inflammation. It was observed that the administration of the extract significantly reduced bronchial inflammation and pulmonary edema. The authors attribute these effects to quercetin, which inhibits the release of pro-inflammatory cytokines.
2. Research in Phytotherapy Research, 2018
A team of researchers from Iran analyzed the antiviral potential of compounds in onion. The results showed that onion juice has an inhibitory effect against several respiratory viruses, including strains of influenza viruses. Quercetin, in particular, had an effect comparable to some synthetic antivirals.
3. Article Published in Molecular Nutrition & Food Research, 2021
This study demonstrated that raw onion increases glutathione levels, an essential antioxidant for lung health. By increasing the antioxidant defense at the pulmonary level, onion contributes to the regeneration of affected tissue and protection against oxidative stress.
Simple Recipe for Preparing Raw Onion Juice
Ingredients:
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1 large white or red onion (preferably organic)
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1 tablespoon of honey (optional, for taste)
Preparation Method:
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Peel and wash the onion well.
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Grate the onion finely or blend it in a blender.
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Place the obtained pulp in a clean cheesecloth and squeeze out the juice.
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You can add 1-2 tablespoons of natural honey to reduce the bitterness and enhance the antibacterial effect.
Administration:
Take 1 tablespoon of juice 3 times a day for 5-7 days.
If necessary, the treatment can be repeated after a break of 2-3 days.
Contraindications and Precautions
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People with gastric ulcers, gastritis, or gastroesophageal reflux should avoid this preparation, as it may irritate the gastric mucosa.
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Contraindicated in pregnancy and breastfeeding without medical approval.
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Not recommended for children under 3 years old.
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May interact with anticoagulants or antihypertensive medications; consult a doctor before use.
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In case of nausea, burning, or oral irritation, discontinue administration immediately.
Raw onion juice remains a valuable remedy, with scientifically proven effects, especially in supporting lung health and calming persistent cough. This simple remedy, known by our ancestors, deserves to be rediscovered and carefully integrated into natural therapies for supporting the respiratory system.
