Top 10 Foods That Commonly Cause Severe Allergies

Introduction

Food allergies affect millions of people worldwide, with some reactions being mild while others can trigger severe, life-threatening anaphylaxis. Certain foods are responsible for the majority of allergic reactions, making it crucial for individuals with allergies to identify and avoid their specific triggers.

This guide covers the top 10 most common food allergens, their symptoms, and what to do in case of exposure.

For allergy testing, EpiPen prescriptions, and expert advice, visit MedCare Health Clinic & Pharmacy.

While any food can cause an allergic reaction, the following 10 foods account for over 90% of severe food allergies.

1. Peanuts

One of the most common and severe food allergens.
Found in snack foods, peanut butter, and sauces.
Can cause anaphylaxis even from trace amounts or airborne particles.

2. Tree Nuts

Includes almonds, cashews, walnuts, pecans, pistachios, and hazelnuts.
Present in baked goods, chocolates, and nut oils.
Often cross-contaminated in food manufacturing.

3. Shellfish

Includes shrimp, lobster, crab, and prawns.
Severe reactions can occur even with vapor exposure (e.g., cooking fumes).
Symptoms range from hives to anaphylaxis.

4. Fish

Commonly triggers severe allergies in adults.
Includes salmon, tuna, cod, and haddock.
Fish proteins are stable, meaning reactions can occur even in processed foods.

5. Dairy (Milk & Milk Products)

Affects both children and adults, though some outgrow it.
Found in cheese, butter, yoghurt, ice cream, and many processed foods.
Severe cases can lead to breathing difficulties and anaphylaxis.

6. Eggs

Egg white proteins (albumin) are the main allergen.
Found in baked goods, mayonnaise, pasta, and vaccines.
Can cause digestive distress, hives, and severe respiratory reactions.

7. Wheat

Contains gluten and other proteins that can trigger allergies.
Different from coeliac disease, which is an autoimmune response.
Present in bread, pasta, cereals, and processed foods.

8. Soy

Common in processed foods, soy milk, tofu, and sauces.
Can cause hives, swelling, and digestive issues.
Many infant formulas contain soy, making early detection crucial.

9. Sesame Seeds

Found in hummus, burger buns, tahini, and dressings.
One of the fastest-growing food allergies, especially in children.
Severe reactions can include difficulty breathing and shock.

10. Lupin (Lupine Flour & Seeds)

A lesser-known allergen but increasingly common in gluten-free products.
Present in breads, pastas, and some baked goods.
Cross-reactivity is common in those allergic to peanuts.

If you suspect a food allergy, it is best to get tested and take necessary precautions.

For allergy testing and management, visit MedCare Health Clinic & Pharmacy.

Symptoms of a Severe Allergic Reaction

Reactions to food allergies can range from mild discomfort to life-threatening anaphylaxis. Common symptoms include:

Mild to Moderate Symptoms:

Skin reactions: Hives, itching, redness.
Digestive issues: Nausea, vomiting, diarrhoea.
Mouth & throat irritation: Swelling, tingling, discomfort.

Severe (Anaphylactic) Symptoms:

Swelling of the lips, tongue, or throat (difficulty breathing).
Chest tightness and wheezing.
Sudden drop in blood pressure (shock symptoms).
Loss of consciousness.

Anaphylaxis is a medical emergency. If symptoms appear, use an EpiPen immediately and seek urgent medical attention.

What to Do If Exposed to an Allergen

1. Administer an EpiPen Immediately

Inject into the outer thigh muscle at a 90-degree angle.
Hold for 3-5 seconds before removing.
If symptoms do not improve after 5-10 minutes, use a second EpiPen.

For EpiPen prescriptions, visit MedCare Health Clinic & Pharmacy.

2. Call Emergency Services (999 in the UK)

Even if symptoms improve after using an EpiPen, medical supervision is required.
Anaphylaxis can have a secondary reaction (biphasic anaphylaxis) hours later.

3. Stay Calm & Keep the Person Comfortable

Lay the person flat unless they have difficulty breathing (then let them sit upright).
Monitor breathing and circulation.

4. Avoid Food Until Medically Cleared

After an allergic reaction, do not consume any food until a doctor has evaluated the situation.

Conclusion

Food allergies are serious and can be life-threatening, making awareness, prevention, and preparation essential.

Key Takeaways:

The most common food allergens include nuts, shellfish, dairy, eggs, and wheat.
Severe allergies can lead to anaphylaxis, requiring immediate medical attention.
Using an EpiPen at the first sign of anaphylaxis can save lives.
Avoiding triggers and seeking allergy testing can help manage food allergies effectively.

If you or a loved one has food allergies, be prepared. Get tested, carry an EpiPen, and know what to do in an emergency.

For expert allergy management, testing, and EpiPen prescriptions, visit MedCare Health Clinic & Pharmacy.

Top 10 Foods That Commonly Cause Severe Allergies

Introduction