Last Updated on April 12, 2023 by Lauren Beck
Onions are a common ingredient in many dishes, but some people may experience an allergic reaction to them. It’s not uncommon for people to wonder whether they can be allergic to red onion but not white onion.
In this article, we’ll explore this topic in detail and provide helpful tips for those who may have an onion allergy.
Can You Be Allergic to Red Onion and Not White?
Yes, it is possible to be allergic to red onion, not white onion. Red onions contain a higher amount of quercetin, a plant pigment that is responsible for their distinctive red color. Quercetin is a type of flavonoid linked to some people’s allergic reactions.
What Causes Red Onion Allergy?
An allergic reaction to red onion is caused by an overreaction of the immune system to the proteins found in the onion. When the immune system identifies the proteins as a threat, it releases histamine and other chemicals, leading to symptoms of an allergic reaction.
Can You Be Allergic to White Onions?
Yes, it is possible to be allergic to white onions. White onions contain similar proteins to red onions, and some people may experience an allergic reaction to them.
Why Do Red Onions Make Me Sick?
If red onions make you sick, it could be due to an allergic reaction. Symptoms of an onion allergy can range from mild to severe and can include:
- Hives or rash
- Swelling of the lips, tongue, or throat
- Difficulty breathing or swallowing
- Nausea, vomiting, or diarrhea
- Abdominal pain
- Anaphylaxis (a severe allergic reaction that can be life-threatening)
What Does An Allergic Reaction To Onions Look Like?
An allergic reaction to onions can cause a range of symptoms, including hives, swelling, and difficulty breathing. In severe cases, anaphylaxis can occur, which can be life-threatening.
Symptoms of anaphylaxis can include difficulty breathing, swelling of the throat, and a rapid heartbeat. If you suspect you may be having an allergic reaction to onions, seek medical attention immediately.
How to Treat an Onion Allergy?
If you have an onion allergy, the best action is to avoid onions altogether. If you accidentally consume onions and experience an allergic reaction, seek medical attention immediately.
Treatment may include antihistamines, corticosteroids, or epinephrine, depending on the severity of the reaction [1].
How to Prevent an Allergic Reaction?
To prevent an allergic reaction to onions, avoiding eating them is important. This may require reading food labels carefully and avoiding dishes containing onions, such as soups and stews. You may also want to inform your friends and family members of your onion allergy, so they can avoid cooking with onions when you’re around.
What Can You Use to Substitute for Onions?
If you’re allergic to onions, you can use other ingredients to add flavor to your dishes. Some substitutes for onions include:
- Shallots
- Scallions
- Garlic
- Chives
- Leeks
How Do I Know if I Have an Onion Allergy?
If you suspect you may have an onion allergy, see an allergist for an allergy test. The test may involve a skin prick test, where a small amount of onion extract is placed on the skin, or a blood test, where a sample of blood is taken to test for antibodies to onion proteins.
Can the Smell of Onions Cause an Allergic Reaction?
No, the smell of onions alone is not enough to cause an allergic reaction. However, some people may experience symptoms such as headaches or respiratory issues when exposed to the strong odor of onions.
Conclusion
In conclusion, it is possible to be allergic to red onion and not white onion. Red onions contain a higher amount of quercetin, a plant pigment that can trigger an allergic reaction in some people. If you suspect you may have an onion allergy, it’s important to avoid onions altogether and seek medical attention if you experience an allergic reaction. Several substitutes for onions can be used to add flavor to dishes, such as shallots, scallions, and garlic. If you have any concerns about an onion allergy, speak to an allergist for an allergy test. By taking the necessary precautions, those with an onion allergy can continue to enjoy delicious meals without any health risks.
Reference:
- https://www.livestrong.com/article/425458-antidote-for-onion-and-garlic-allergies/
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