We know this is a difficult time and We want you to know we care for our patient's health and wellbeing.

What Causes Food Allergies?

What Causes Food Allergies?

Food allergies occur when your immune system misinterprets food proteins as a threat to your body. As a result, your immune system triggers the release of various substances into the bloodstream, causing allergy symptoms.

Although almost any food can cause an allergic reaction, most food allergies are caused by just a few culprits. If you or your child has a food allergy or if you suspect a food allergy is causing your symptoms, scheduling a visit with an allergy specialist at Rheumatology and Allergy Institute of Connecticut, LLC, is the next best step.

Allergy and immunology specialist Reinhard Kage, MD, can help you get an accurate diagnosis. The only way to prevent an allergic reaction is to strictly avoid the food or food substance you’re allergic to. Once your diagnosis is confirmed, Dr. Kage works closely with you to ensure that your diet is safe.

Types of food allergies

Food allergies are classified based on the symptoms and when they occur.

The most common type of food allergy is IgE-mediated food allergy, which is caused by your immune system producing an antibody called immunoglobulin E (IgE). After consuming the allergen, symptoms appear within seconds or minutes. This type of allergy carries a higher risk of anaphylaxis.

Food allergies that aren't mediated by immunoglobulin E (non-IgE-mediated food allergies) are caused by other immune system cells. This type of allergy is difficult to diagnose because symptoms take longer — up to several hours — to show up.

What causes allergies?

Scientists aren’t sure what causes allergies, but genetics appears to play a significant role. If your parents have allergies of any kind, you're more likely to have them. People with immune-related conditions like asthma or eczema are also likely to have or develop allergies.

There's also some biological predisposition. It may seem unfair, but if you already have an allergy, you're more likely to develop another one. When you consider it, your immune system has already overreacted to one allergen and is producing immunoglobulin E unnecessarily, so it’s prone to have the same reaction to something else.

What foods cause allergies? 

While any food can cause an allergic reaction, most allergies are caused by the following eight foods:

Fortunately, manufacturers must declare the “big 8” allergens on food labels.

The importance of an accurate diagnosis 

Not everyone who reacts to certain foods has a food allergy. Some people may believe they have food allergies because they experience itching in their mouth and throat after eating raw or uncooked fruits or vegetables, but this could be due to oral allergy syndrome, which is a reaction to pollen rather than the food itself.

There's also a distinction between food allergies and non-allergic food sensitivity. Food sensitivities and intolerances can cause symptoms such as bloating and stomach cramps, which usually appear several hours after eating. Food allergies, on the other hand, tend to happen quickly. People with a food intolerance can usually tolerate small amounts of the problematic foods. 

Celiac disease is frequently confused with wheat allergy and gluten intolerance; however, it is an autoimmune disease in which the body attacks its own cells. Gluten — a protein found in wheat, rye, and barley — causes the body to damage and destroy the lining of the small intestine.

If you suspect you or your child have a food allergy, take the proactive step and see a doctor and get tested right away. An accurate diagnosis is key.

You’re in capable hands when you visit the Rheumatology and Allergy Institute of Connecticut, LLC. Dr. Kage has extensive experience diagnosing food allergies. To get started, call our office in Manchester, Connecticut, to schedule a visit for a food allergy evaluation, or book your request online.

You Might Also Enjoy...

Telltale Symptoms of Sjogren’s Syndrome

Sjogren’s syndrome can be challenging to diagnose because symptoms may mimic other conditions. When you suspect Sjogren’s, it’s wise to visit a rheumatology specialist for a comprehensive evaluation.

Top Tips for Managing Your Asthma

Effective asthma management requires expert guidance and an appropriate asthma action plan. With the right care and steps, you can feel in control and confident in managing your asthma. Here are our top tips.

Encouraging Facts About Sjogren’s Syndrome

Chronic dry eye can turn out to be something else. Sjogren’s syndrome often overlaps with other conditions, which can make it difficult to diagnose. A rheumatology specialist is the best person to help you get answers. Get the facts here.

Understanding Psoriatic Arthritis

Living well with psoriatic arthritis requires the help of a specialist and understanding the implications of your condition. With the right help, you can control your symptoms so you feel and function as best as possible.

Allergy Desensitization With Allergy Shots

Allergy immunotherapy is one of several treatments for allergies. Because allergy shots provide long-term relief from allergy symptoms, it’s worthwhile to speak to an allergy specialist to find out if this treatment is right for you.

Understanding Your Treatment Options for Scleroderma

Scleroderma can have a significant impact on many aspects of life, so having an expert team to help you manage issues from this autoimmune disease is crucial. A good program aims to reduce complications and provide symptom relief.