While onion is a common ingredient in many dishes, true onion allergies are rare. It's much more common to experience symptoms from a food intolerance to onions. Both allergies and intolerances can share similar symptoms, such as stomach upset.
Although onion allergies are rare, they can occur in people of all ages. The primary allergens found in onions are lipid transfer proteins, including All c 3 and All c 4. These proteins can trigger a range of reactions, including:
- Skin Reactions: Hives, itching, swelling, contact dermatitis
- Respiratory Reactions: Difficulty breathing, asthma, rhinoconjunctivitis
- Gastrointestinal Reactions: Vomiting, upset stomach
If you suspect you have an onion allergy, it's important to consult with an allergist for proper diagnosis and management.
