At first, it felt almost too basic to cover food allergies in general, but then I realized many here are likely either newly navigating allergies or newly familiar with them. Plus, there’s always something to learn.

In fact, let me throw a few basic food allergy stats at you real quick! As of 2022, 1 in 13 children have food allergies, that’s roughly 2 in every classroom. As of 2019, nearly 11% of all adults have a food allergy, and over 45% reported developing a food allergy after 18 years of age. [This information came from: ScienceDirect, cdc.gov, and feinberg.northwestern.edu]

Looking ahead—what future do you want to see for those with food allergies & similar conditions? With the current Food and Drug Administration (FDA) & Centers for Disease Control and Prevention (CDC) cuts and other challenges, it can feel hard to imagine progress. But envisioning the future we want is how we make it happen. And taking care of ourselves for the long haul is part of that, too.

What Are Food Allergies?

Food allergies occur when your immune system mistakenly identifies a harmless protein in food as a potential threat. In response, it triggers a defense mechanism to protect you, causing symptoms like coughing, vomiting, or throat swelling—your body’s way of trying to expel or block the allergen. This process involves mast cells, immune cells found in your skin, gut, and other tissues. When mast cells detect an allergen, they release chemicals like histamine, which leads to allergy symptoms.

Food allergies can be classified as IgE-mediated, where the immune system is directly involved, or non-IgE-mediated, which still involve the immune system but through different pathways.

Unlike IgE-mediated food allergies, which trigger an immediate immune response through IgE antibodies and can lead to severe reactions like anaphylaxis, non-IgE-mediated food allergies operate through T cells and other immune mechanisms. These reactions are typically delayed, emerging hours or even days after exposure, and often affect the gastrointestinal system. While non-IgE-mediated allergies don’t cause anaphylaxis, they can still lead to significant symptoms and chronic conditions. Examples include food protein-induced enterocolitis syndrome (FPIES) and eosinophilic esophagitis (EoE), both of which highlight that even in the absence of IgE, the immune system plays a crucial role in allergic reactions.

Understanding Anaphylaxis: How It Affects the Body

Anaphylaxis is a life-threatening, rapid allergic reaction that can affect multiple systems in the body. Here’s how it can impact different “systems” of the body:

• Skin:
  Anaphylaxis may start with swelling, hives, or itching, but it’s important to note that these symptoms aren’t always present. Some people may not show any skin reactions.
• Respiratory System:
  The airways may become constricted, causing difficulty breathing, wheezing, or a tight throat. However, it’s not always guaranteed that breathing trouble will occur.
• Digestive System:
  Symptoms can include nausea, vomiting, or abdominal pain. These symptoms are often overlooked but can be a crucial sign of anaphylaxis.
• Cardiovascular System:
  A drop in blood pressure can lead to dizziness or fainting. In extreme cases, this can cause shock, making it harder for the heart to pump blood effectively.
• Mental and Emotional Response:
  People may experience confusion or a sense of impending doom as the body reacts to the stress of the situation. This can sometimes be one of the earliest warning signs.

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It’s important to remember that anaphylactic reactions can vary greatly from person to person, and from one episode to another. Anaphylaxis might not always involve trouble breathing, and symptoms can present differently every time, which is why it’s so unpredictable. This is why it’s always critical to be prepared for any reaction.

The saying “Epi-first, epi-fast” is a reminder to use your epinephrine if you suspect multiple body systems are involved and anaphylaxis is happening. There are no side effects from using epinephrine, and delays in administering it can be fatal.

Who Treats Food Allergies?

Board-certified allergists and immunologists are the primary specialists responsible for diagnosing and managing food allergies. These medical professionals undergo extensive training in allergic diseases and the immune system, making them the most qualified to assess and treat food allergies accurately. Diagnosis typically involves a combination of clinical history, validated allergy testing methods, and sometimes food challenges. While other healthcare providers—such as dietitians, pediatricians, dermatologists, or gastroenterologists—may assist in managing symptoms or related conditions, a board-certified allergist should be your first point of contact for an accurate diagnosis and comprehensive treatment plan.

Common Types of Food Allergy Testing

Food allergy testing includes several methods, each with its own strengths and limitations. Skin prick tests (SPT) are widely used and involve placing a small amount of the suspected allergen on the skin, then pricking the surface to observe for a localized reaction. Serum-specific IgE blood tests measure the level of IgE antibodies in the blood that correspond to particular allergens, though they are not definitive on their own. The oral food challenge (OFC) is considered the gold standard for diagnosing food allergies, as it involves consuming small, controlled amounts of the suspected allergen under medical supervision to monitor for a reaction.

It’s important to note that at-home allergy tests—including IgG-based tests and unvalidated methods like hair analysis or muscle response testing—are not scientifically reliable and can lead to misdiagnosis or unnecessary dietary restrictions. A board-certified allergist will ensure a thorough and accurate assessment, reducing the risk of false positives and unnecessary food avoidance.

How to Cope with Food Allergies?

Coping with food allergies means being proactive, staying prepared, and managing stress. Since food allergies are highly individualized, there is no one-size-fits-all approach. A key part of managing food allergies is avoiding allergens by reading food labels, asking questions at restaurants or when buying packaged goods, and preventing cross-contact. For IgE-mediated allergies, where the immune system is involved, always carry epinephrine. Though it is not a guarantee, epinephrine can be life-saving in the event of a severe allergic reaction.

If you have access to multiple epinephrine brands, my preferred brands are Auvi-Q and Neffy. Auvi-Q offers an audio feature that guides the person administering the injection—whether it’s the allergic individual or someone helping—through each step of the process, ensuring proper use. Neffy, a newer FDA-approved option, is a needle-free nasal spray version, offering an alternative for those who may have difficulty with injections. On my social media, I showcase these different types of epinephrine.

Education is also critical. Make sure those around you—friends, family, schools, and caregivers—are educated about your allergies and know how to respond in case of an allergic reaction. It’s important to address emotional well-being too, so consider seeking support through therapy or connecting with support groups to help navigate the emotional toll and mental health aspects of managing allergies.

Common Food Allergy Symptoms

Food allergy symptoms can range from mild to severe and may vary between individuals. As stated above, common symptoms across both IgE-mediated and non-IgE-mediated food allergies include:

• Skin reactions like hives, itching, and redness
• Digestive symptoms such as nausea, vomiting, and diarrhea
• Respiratory issues like coughing, wheezing, shortness of breath, and nasal congestion
• Cardiovascular symptoms such as dizziness, a rapid drop in blood pressure, and fainting
• Mental and emotional symptoms such as confusion, a sense of impending doom, or overwhelming anxiety due to the body’s stress response

In severe cases, food allergies can trigger anaphylaxis, a life-threatening reaction that affects multiple body systems. It is important to be aware of these symptoms and know how to respond with epinephrine in case of an emergency.

Is There a Cure for Food Allergies?

Currently, there is no cure for food allergies. The primary strategy for managing food allergies is strict avoidance of allergens. While there is no cure, ongoing research into prevention and treatment options offers hope for the future. Emerging therapies, such as oral immunotherapy (OIT) and biologics like Xolair, are being studied and used to help reduce allergic reactions. However, access to these treatments can be challenging for many, particularly due to the high cost of epinephrine and lack of access to necessary healthcare services. As new therapies progress, it is important that all income levels are included in the conversation to ensure everyone has access to the care they need.

How Can I Read Labels with Food Allergies?

In the United States, food labeling laws require the top 9 allergens—peanut, tree nut, milk, egg, wheat, soy, fish, shellfish, and sesame—to be clearly listed on food packaging, even in spice blends and flavorings. However, precautionary allergen labeling and cross-contact warnings are voluntary and unregulated, which means they may not always be accurate. Allergens outside of the top 9 do not need to be listed in ingredients like spice blends, natural flavors, or colorings. For example, someone allergic to garlic would need to find out what’s in an ingredient listed such as “spices” or “natural flavoring”, and someone allergic to corn would need to be cautious of ingredients like “modified food starch,” “maltodextrin,” or “natural flavors,” as these can often be derived from corn without clear labeling.

Additionally, non-food items, such as medications, cosmetics, pet food, and supplements, don’t follow the same labeling rules as food products, meaning allergens may not be disclosed. Always read every label, every time, and reach out to manufacturers when you’re unsure. It’s also important to push for better food labeling laws to improve transparency and accuracy in allergen disclosures.

Learn More from Trusted Resources

If you’re looking for additional information and resources to manage food allergies, here are some trusted organizations that can help:

• FAACT (Food Allergy & Anaphylaxis Connection Team): Provides support, education, and advocacy for individuals managing food allergies.
• FARE (Food Allergy Research & Education): Offers comprehensive information on food allergies, ongoing research, and resources for managing life-threatening reactions.
• AAFA (Asthma and Allergy Foundation of America): Focuses on allergy awareness, including anaphylaxis, and provides helpful resources for individuals living with allergies.
• AAAAI (American Academy of Allergy, Asthma & Immunology): Offers expert information on allergies and anaphylaxis, including treatment options, prevention strategies, and the latest research.

By staying informed and utilizing these resources, individuals managing food allergies can gain the knowledge and support necessary to navigate daily life and minimize the risks associated with allergic reactions. Here is this same post but on my Instagram!

Food Allergy 101 FAQs: Frequently Asked Questions about Food Allergies

1. What is a food allergy?

A food allergy occurs when your immune system mistakenly identifies a harmless protein in food as a threat, leading to an allergic reaction. Symptoms may include skin rashes, digestive issues, or more severe reactions like anaphylaxis.

2. How do I know if I have a food allergy?

The best way to determine if you have a food allergy is by consulting a board certified allergist. They can perform tests, such as skin prick tests or blood tests, to diagnose allergies and identify triggers.

3. What are the most common food allergies?

The most common food allergens include peanuts, tree nuts, milk, eggs, wheat, soy, fish, shellfish, and sesame. These allergens are required by law to be labeled on packaged food in the U.S.

4. Can food allergies develop later in life?

Yes, it is possible to develop food allergies in adulthood. Though food allergies often develop in childhood, they can appear at any age.

5. How can I manage food allergies?

Managing food allergies involves strict avoidance of allergens, carrying epinephrine (if prescribed), and reading food labels carefully. It’s important to work with your healthcare provider to create a personalized action plan.

6. Are there treatments or cures for food allergies?

Currently, there is no cure for food allergies. However, treatments such as oral immunotherapy (OIT) and biologics like Xolair are being studied. The primary management strategy is allergen avoidance.

7. What is the difference between anaphylaxis and a food allergy reaction?

Anaphylaxis is a severe, life-threatening allergic reaction that involves multiple body systems and can cause symptoms like difficulty breathing, swelling, and a drop in blood pressure. It requires immediate medical attention, including the use of epinephrine.

8. How can I read food labels to avoid allergens?

In the U.S., food labels must list the top 9 allergens clearly. However, precautionary allergen labeling is voluntary, so always read labels thoroughly, contact manufacturers when necessary, and push for stronger labeling laws.

9. WHO TREATS FOOD ALLERGY CONDITIONS?

Allergists or immunologists are the primary specialists who diagnose and manage food allergies. They use a combination of diagnostic tools, such as skin prick tests, blood tests, and oral food challenges (OFCs), alongside your medical history. In addition to allergists, other healthcare providers like dietitians, pediatricians, dermatologists, or gastroenterologists may play a role in allergy management, depending on your specific needs. It’s crucial to avoid at-home allergy tests, as no single test is completely accurate. Proper diagnosis often requires a comprehensive approach, guided by an allergist’s expertise.

10. How can food allergies affect mental health?

Food allergies can significantly impact mental health due to the constant stress of managing allergens, the fear of accidental exposure, and the emotional toll of feeling different or isolated. The anxiety associated with anaphylaxis can create ongoing emotional strain, while the limitations on social activities or food choices can contribute to depression or feelings of exclusion. It’s crucial to address both the physical and mental aspects of living with food allergies to maintain overall well-being.

11. What role does support play in managing both food allergies and mental health?

Support from family, friends, and healthcare providers is vital for those with food allergies, not only for physical safety but also for emotional well-being. Feeling understood and having a reliable support network can reduce anxiety and help build coping strategies for managing the mental challenges that often accompany food allergies. I run a free monthly autoimmune & food allergy meet-up in Louisville for people seeking connection like this. Check for one like this in your area, or come to mine if you’re local! I promote it on my social platform.

12. Why is it important to discuss the intersection of food allergies and mental health more openly?

Too often, the mental health challenges that come with food allergies are overlooked or minimized. Acknowledging this intersection is crucial to providing comprehensive care and support for individuals living with food allergies. This topic is discussed in my upcoming nonfiction book, where I dedicate an entire chapter to exploring the psychological impact of food allergies. It’s a conversation that needs to happen more, as it can help reduce stigma, raise awareness, and encourage better mental health support for those affected.

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