How to Prevent Corn Allergic Reactions & What to Avoid?

how to treat corn allergy in simple steps

Millions of people worldwide have different food allergies regardless of age, region, and gender. Though uncommon, corn allergy is a severe one among the others. It is challenging due to its wide presence in various food products and non-food items.

This article will provide insight into corn allergy, its signs and symptoms, causes, and diagnoses. Understanding these aspects is necessary for effective management. Individuals suffering from the condition can keep reading to learn the necessary measures they can take to treat and prevent it.

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What are Corn Allergies?
Causes of Corn Allergies
Signs and Symptoms
Who is at Risk?
How to Diagnose?
Corn Allergy Treatment
How to Prevent?
Frequently Asked Questions

What are Corn Allergies?

Corn allergy occurs when human immunity confuses corn with something harmful and eventually releases antibodies to fight the allergen. In addition, the body recognizes the allergen and sends signals to the immune system to release chemicals responsible for symptoms of a corn allergy.

Apart from acute sensitivity, individuals might experience other symptoms that could be seen later, posing a challenge to diagnosis and treatment. Allergies to corn can manifest in the symptoms of different body systems and range from light to extreme symptoms.

What are the Causes of Corn Allergies?

In contrast to other food allergies like seafood, wheat, nuts, etc., the primary reason behind corn allergy is not confirmed. Experts believe that it may be due to a combination of genetic, environmental, and epigenetic factors. A few of them are:

Zein, a protein found in corn, is considered a potential reason behind corn allergy. When a human body identifies zein, it releases immunoglobulin (IgE) to fight the protein. IgE, in response, stimulates the immune system cells to release histamines and other chemicals, leading to corn allergy. This reaction may result from eating raw and cooked corn or any food items that have corn in them. As all corn products do not contain zein, it is wise to avoid such foods.
Surgical gloves or intravenous fluid containing corn may cause allergic reactions.
Corn pollen, grass pollen, and cornstarch are a few other culprits behind severe corn allergic reactions like asthma and hay fever (nasal congestion).
Cross-contamination with other foods or allergens might be involved. People with corn allergy may also encounter similar proteins in other related plants or foods.
Certain corn-derived additives and preservatives also have the potential to cause sensitization, such as the sweetener high-fructose corn syrup.
Family history and genetics may play a role in the occurrence of corn allergies, such that people with a family history of allergies are at risk for developing corn allergies.
Certain conditions with an inability to metabolize histamine may present symptoms similar to corn’s protein-related allergy but of histamine origin.

What are the Signs and Symptoms of Corn Allergy?

what are the signs and symptoms of corn allergies

The potential reason behind corn allergy is exposure to corn or corn products such as fructose syrup, corn starch, vegetable oil, and more for a prolonged period.

However, reactions to this allergy vary from person to person. While for some, the signs may be uncomfortable, for others, they may be severe and, in a worse case, life-threatening. These symptoms typically take a few minutes or may take up to 2 hours after eating corn or its products.

Initial Symptoms of Corn Allergy

Initial Symptoms	Description
Itching or Tingling Sensation Inside the Mouth	This phenomenon arises soon after the individual eats corn or corn-based products and may represent an early alert.
Rashes or Hives	Rashes or hives on the skin may be persistent red and itchy areas and may form part of the allergic response to corn.
Headache	For some persons, headache may be an additional symptom of allergy, which is also very discomforting.
Breathlessness with Nasal Congestion	There may be wheezing and a running nose, among other symptoms, which are a form of irritant response to the corn allergens.
Dizziness	Dizziness can come as a symptom because of poor circulation or low oxygen supply brought about by the allergic reaction.
Abdominal Pain	Corn allergy is commonly associated with some allergic gastroenteritis inflammation leading to abdominal pain.
Indigestion Including Vomiting, Nausea, and even Diarrhoea	Other symptoms related to allergic reactions can present elevated parasympathetic tone, including nausea, vomiting, and diarrhoea.
Swelling of Lips, Tongue, Face, or Other Body Parts	A lumpy feeling in additional local areas can indicate this as one of the more severe allergic reactions that require urgent care.

Severe Symptoms of Corn Allergy

Anaphylaxis is a fatal allergic sign of corn allergy. Its symptoms are:

Severe Symptoms	Description
Irregular Heart Rate	Heart rhythm changes during anaphylaxis could indicate a severe allergic reaction that compromises cardiovascular function.
Unconsciousness	Circumstances might arise whereby a person suddenly loses consciousness due to too low blood pressure levels or lack of oxygen.
Breathing Difficulties due to Swollen Throat and Other Air Passages	During anaphylaxis, swelling in the throat and air passages can make breathing efforts ineffective.
Shock	It is a drastic decline in arterial blood pressure and may prompt the individual to mute or be unable to convey certain behaviours.
Lethargy	There is great malaise and drooping during very serious allergic reactions, taking away the person's activity.

Who is at Risk of Corn Allergy?

Though it can be fatal, corn allergy is not common. Individuals with asthma, hives, hay fever, and eczema are susceptible to this allergy. Furthermore, anyone with any other food allergies is also at greater risk. It is also essential to analyze if anyone in the family is allergic to corn, especially a sibling.

There may also be heightened risk for those without allergies but who have a family history of corn allergy or other atopic diseases. Likewise, people suffering from poor immunity or constantly exposed to corn products, say agri-industry workers, should also be careful. One should consider the assistance of a specialist for specially designed risk evaluation and minimization.

How to Diagnose Corn Allergy?

Diagnosis of food allergies is a daunting task. While the most common tests for corn allergy are of blood and skin, the chances of false-positive reports are high. That said, it is crucial to consider the allergic reaction of the food item that caused the allergy with the other reports as well. A few others can be:

As corn is a popular cereal and abundantly found in other edibles, one can maintain a record of the food items that triggered any of these above-listed allergic symptoms.
An elimination diet is another helpful way to sidestep any allergic reactions. The process includes restricting frequently consumed food items at first. Then, those items are included in the diet at specific intervals so that the signs can be traced back conveniently.
The test is where patients eat bits of corn; however, it is done under the doctor’s supervision and checks for symptoms.
In some instances, patch tests may also be conducted on the patients to induce delayed hypersensitivity reactions to corn protein; however, this is not commonly practiced.
This involves eating small portions of corn while having a medical professional oversee the process to check for any possibility of symptoms.

Note: An elimination diet should be followed for at least 2 weeks to assess the allergic reactions properly. However, it is wise to consult a professional before opting for this diet to avoid further complications.

What are the Treatments for Corn Allergies?

The treatment for corn allergy depends on the severity of the symptoms. Treating corn allergy for mild symptoms includes managing the signs till they disappear. On the contrary, for anaphylactic reactions, the available treatments are immediate medical attention and injection of epinephrine, an EpiPen.

In most severe cases where the above treatments do not control a patient’s symptoms, then patients may need to be admitted to the hospital for additional drugs, including intravenous fluids and hydrocarbons such as oxygen. The long-term plan includes completely avoiding corn, including cornmeal and all corn derivatives, and seeing an allergist for specific plans and emergency measures for the allergy.

How to Prevent Corn Allergy?

It goes without saying that the best way to avoid corn allergy is to cut down on corn strictly. Nonetheless, it is not as easy as it sounds. Therefore, it is essential to work out a diet under the guidance of a professional nutritionist to familiarise oneself with the fool-label ingredients.

Additionally, when eating out at a restaurant, a friend's place, or any such family gathering, it is essential to talk to the cook or people involved in catering to learn about preparation and ingredients to ensure 100% immunity against corn allergy.

To conclude, it has been established that corn allergy management includes proper knowledge of corn allergy symptoms. It is improved when triggers are identified, corn products are avoided, and medical advice is sought. Use food diaries, exclusion diets, and other methods only after consulting a doctor. This way, the burden of corn allergies is correctly managed, and the quality of life is improved for those suffering from corn allergies.

FAQs about Corn Allergy

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Which are the foods that commonly contain corn?

Food items that often contain corn are-

Corn or vegetable oil
Corn syrup
Cornmeal
Cornstarch
Popcorn
Corn sugars like dextrin, Dyno, Cerelose, Puretose, Sweetose, glucose, maltodextrin, fructose, xylitol, inositol, dextrose, sodium erythorbate, sorbitol
Tortilla or corn chips
Maize
Protein or energy bars
Breakfast cereals and more

Apart from food, does any other item contain corn?

Yes, there is a long list of non-food products that contain corn. They are -

Paper containers
Adhesives such as stickers, stamps, etc.
Straws
Toothpaste
Food wrappers with cornstarch coating
Surgical gloves
Shampoo
Paint
Pet food and others

Can corn allergies cause skin reactions?

Yes, corn allergies can cause skin reactions such as rashes, hives, and itching. These symptoms occur when the immune system reacts to corn proteins.

How can I identify hidden corn ingredients in processed foods?

Look for ingredients like corn syrup, corn starch, and maize on labels. Be cautious with terms like "natural flavours," which may contain corn derivatives.

Is it possible to develop a corn allergy later in life?

Yes, corn allergies can develop at any age, even if you previously consumed corn without issues. Changes in immune system function can trigger new allergies.

Are there any specific medications that can help with corn allergies?

Antihistamines and corticosteroids can help manage symptoms by reducing inflammation and blocking histamine. Consult your healthcare provider for the best treatment.

How can I avoid corn in my diet?

Read food labels carefully to avoid ingredients like corn syrup and cornstarch. Opt for whole foods and check for allergy-specific resources for corn-free options.

Can corn allergy be outgrown?

Corn allergies are generally persistent and may continue into adulthood. Some individuals might experience reduced symptoms or increased tolerance over time.

What are the symptoms of a corn allergy in children?

Symptoms can include hives, stomach pain, vomiting, and irritability in children. Severe cases may lead to difficulty breathing or anaphylaxis.

Can corn allergies affect my pets?

Yes, pets can develop corn allergies, which may cause skin issues, digestive problems, or changes in behaviour. Consult a veterinarian for diagnosis and treatment.

Are there any vaccines or treatments to prevent corn allergies?

There are no vaccines to prevent corn allergies. Management involves avoiding corn and corn products and having an emergency action plan.

How should I handle a corn allergy emergency?

Carry an epinephrine auto-injector and follow your emergency action plan. Seek immediate medical help if you experience severe symptoms such as difficulty breathing.

Are there any corn-free substitutes for common corn products?

Corn-free substitutes include rice flour, potato starch, and tapioca. These can be used in cooking and baking instead of corn-based ingredients.

Can corn allergies be diagnosed through a blood test?

Yes, specific IgE blood tests can diagnose corn allergies by measuring the immune response to corn proteins. This helps confirm the presence of an allergy.

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How to Prevent Corn Allergic Reactions & What to Avoid?

Table of Contents

What are Corn Allergies?

What are the Causes of Corn Allergies?

What are the Signs and Symptoms of Corn Allergy?

Initial Symptoms of Corn Allergy

Severe Symptoms of Corn Allergy

Who is at Risk of Corn Allergy?

How to Diagnose Corn Allergy?

What are the Treatments for Corn Allergies?

How to Prevent Corn Allergy?

FAQs about Corn Allergy

Which are the foods that commonly contain corn?

Apart from food, does any other item contain corn?

Can corn allergies cause skin reactions?

How can I identify hidden corn ingredients in processed foods?

Is it possible to develop a corn allergy later in life?

Are there any specific medications that can help with corn allergies?

How can I avoid corn in my diet?

Can corn allergy be outgrown?

What are the symptoms of a corn allergy in children?

Can corn allergies affect my pets?

Are there any vaccines or treatments to prevent corn allergies?

How should I handle a corn allergy emergency?

Are there any corn-free substitutes for common corn products?

Can corn allergies be diagnosed through a blood test?

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