Food allergy happen when your immune system reacts to a food protein because it perceives it as threatening. It does this by creating antibodies, which are a type of blood protein used to recognize and fight infection body.
There are two types of allergic reactions to food.UFABET
- Immunoglobulin E (IgE) mediated: This is the most common type of allergic reaction. It happens when IgE antibodies release chemicals like histamine to fight off the perceived invader. Histamine causes typical allergy symptoms and may lead to anaphylaxis, which could be life threatening.
- Non-IgE mediated: In this type of reaction, other parts of the immune system respond against the perceived threat. A non-IgE-mediated allergic reaction often involves skin or digestive symptoms, such as heartburn and eczema.
Non-IgE allergies may be difficult to diagnose because symptoms can suggest a food intolerance and there’s no blood test for it.
Common food allergies include dairy, peanuts, and tree nuts, among others. You may be more likely to outgrow certain allergies than others.
Symptoms may include:
- swelling of the tongue, mouth, or face
- difficulty breathing
- low blood pressure
- vomiting
- diarrhea
- hives
- itchy rash
In severe cases, a food allergy can cause anaphylaxis. This can be a life threatening emergency that requires immediate medical attention.