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The unpredictable weather patterns we’ve been experiencing, with sudden shifts from intense heat to heavy rain, often weaken our immune systems, making us susceptible to illnesses like colds and fevers. If you’ve started feeling congested, experiencing a runny nose, or noticing phlegm in your throat accompanied by a fever, these are likely signs that the flu virus has compromised your immune system.
While many turn to over-the-counter medications for relief, there’s a simpler remedy available right in your kitchen—onions. Onions have long been recognized for their ability to alleviate cold and flu symptoms, dating back to the Roman era. These humble vegetables have been used to treat a variety of ailments, including fever, cough, abdominal pain, headaches, sinusitis, and high blood pressure.
Despite the tears they bring when sliced, onions are packed with health benefits. Whether red, yellow, or white, onions are rich in nutrients that support overall health. They boost leukocyte production, which strengthens the immune system, and help clear congestion and open up airways. This is due to their content of vitamin C, selenium, enzymes, and sulfur compounds, all of which are beneficial for those suffering from colds. Additionally, onions are a potent source of antiviral, antibacterial, and antioxidant properties.
Nutritional Information of Onions
Per 100 grams, onions provide:
- 40 kcal
- 9.34 g carbohydrates
- 4.24 g sugars
- 1.7 g dietary fiber
- 0.1 g fat
- 1.1 g protein
- Various vitamins and minerals including vitamin C, calcium, iron, and potassium.
How Onions Help with Cold and Flu Symptoms
Onions have been used for centuries as a natural remedy for colds and flu. Ancient China recognized onions for their ability to relieve congestion, and Native Americans used them to combat the common cold. Modern recognition comes from the World Health Organization, which acknowledges onions’ effectiveness in alleviating symptoms such as congestion, coughs, bronchitis, and other respiratory infections.
A common practice in the past involved placing sliced onions around the home or near the bed to prevent colds. Scientists suggest that onions can purify the air by absorbing germs, thus preventing illness. Additionally, placing sliced onions on the soles of the feet has been believed to cleanse the blood, a method supported by evidence showing that onions are rich in sulfuric compounds beneficial for health.
Onions are also high in quercetin, an antioxidant that helps combat free radicals and enhances immune response, helping to maintain health even in extreme weather conditions.
Precautions and Warnings
While onions are generally safe to consume as part of a regular diet or applied to the skin, excessive use can lead to side effects such as skin irritation, tearing eyes, or stomach discomfort. Certain individuals should avoid onions, including those allergic to related plants like mugwort and celery, those recovering from certain surgeries, individuals with a history of bleeding disorders, and those with digestive issues, as onions can exacerbate symptoms.
Recipes Using Onions to Relieve Cold Symptoms
Here are some simple ways to use onions as a remedy for colds:
- Chew a slice of onion every 3-4 hours.
- Chop 3-4 onions, let them sit for a few hours, optionally adding honey or olive oil, and chew three times a day.
- Mix 3-4 chopped onions with a glass of water and drink daily.
- Store peeled onions in a bottle with honey, let it sit in the refrigerator for a week, and consume 2-3 onions when symptoms appear.
- Blend onions with tomatoes, basil, and salt to make a herbal drink, and consume daily.
Recommended Intake
The recommended amount of onion consumption varies depending on factors such as age and health condition. Currently, there is no specific scientific guideline on the exact dosage of onions. However, it’s essential to remember that natural remedies should be used in moderation, as excessive consumption can be harmful.
