Common Food Allergies in Children

Food allergies in children are on the rise, and for many families, they are a serious daily concern. From identifying symptoms to creating a treatment plan, this guide will help you navigate everything you need to know about managing food allergies.

At Bootin and Savrick Pediatric Associates in Houston, TX, we have experience treating allergies in children. If you think your child may be affected, we encourage you to contact our team for a full evaluation and support.

A child having an allergic reaction with common allergens displayed in Texas.

What is a Food Allergy in Children?

A food allergy in children happens when the child’s immune system mistakenly identifies a specific food protein as harmful. Unlike a food intolerance, which may cause discomfort but not trigger the immune system, a food allergy can lead to dangerous and potentially life-threatening symptoms.

When a food allergy occurs, the child’s immune system decides that a certain food is a threat and produces antibodies to fight it. This triggers an allergic reaction. Food allergies mean the immune system is actively engaged every time that allergen is consumed.

Common Food Allergies and Allergens

Most food allergies in children are caused by a few specific items. These include:

  • Milk
  • Eggs (egg allergy is very common in young children)
  • Peanuts
  • Tree nuts (such as almonds, cashews, and walnuts)
  • Soy
  • Wheat
  • Fish and shellfish
  • Sesame
 

Children with a confirmed peanut allergy or those who are highly allergic may experience a severe allergic reaction even from trace amounts of allergens. These reactions can be triggered by shared cooking tools or the same serving utensils used for other foods.

Visit our asthma and allergies page to learn more about how we treat allergies in children and support families through these challenges.

What Causes Food Allergy in a Child?

There is no single answer, but a few factors are known to increase risk:

  • Family history of allergies or asthma
  • If your child already has allergies to other food
  • Asthma sufferers are more likely to have food allergies
 

Interestingly, giving your baby eggs early and other potentially allergenic foods into a baby’s diet (around 4–6 months old) may help prevent food allergy. However, parents should do this only under the guidance of a pediatric provider.

Symptoms of Food Allergy

Symptoms of a child’s food allergy can range from mild to severe. They typically occur soon after eating the allergen, but can sometimes be delayed.

Mild Symptoms may include:

  • Itchy rash or mild to severe eczema
  • Face swelling, hives
  • Sneezing, nasal congestion
  • Vomiting, diarrhea, and stomach cramps
 

Severe Symptoms may include:

  • Trouble breathing
  • Swelling of the throat or tongue
  • Lowered blood pressure
  • Rapid heartbeat or fainting
  • Severe reaction requiring immediate medical attention
 

Severe allergic reactions are a medical emergency. Always carry an epinephrine auto-injector if your child is at risk of food allergy anaphylaxis.

How is a Food Allergy Diagnosed?

Diagnosing food allergies involves more than just observing reactions. A healthcare provider may recommend:

  • Skin prick test to identify reactions to specific allergens
  • Blood tests to measure IgE antibodies in response to certain foods
  • A food challenge test where your child consumes suspected allergens under supervision
  • Review of the child’s health history
 

These tests help determine if a food allergy is present and whether a food allergy treatment plan is needed. Your provider may also discuss follow-up testing to monitor progress or rule out other food allergies.

Treatment of Food Allergies

Once a food allergy is diagnosed, the main goal is to avoid the trigger and prevent severe reactions.

Key steps include:

  • Avoid the allergen entirely (such as peanuts or tree nuts)
  • Always read labels and be cautious with food outside the home
  • Carry a food allergy card or wear a medical ID bracelet
  • Educate teachers and caregivers about your child’s food allergies
 

In case of exposure, treating an allergic reaction promptly with epinephrine can save lives. While there is no cure yet, oral immunotherapy may be an option for some children. Treatment is typically done in cooperation with an allergy healthcare provider. In addition, some children may be candidates for desensitization therapy.

Helping Your Child Live with Food Allergies

Living with food allergies doesn’t mean your child can’t thrive. Here’s how you can help:

  • Educate your child about safe and unsafe foods
  • Communicate with your child’s school and other caregivers
  • Be aware of the risks of cross-contact from the same or similar allergies
  • Talk with your provider about how to prevent food allergy escalation
 

You may also need to monitor your child’s reactions to other foods over time. Many kids who are allergic to one food may have or develop other allergic reactions.

Don’t let your child eat fried foods, as they may be cooked in oils that contain allergens.

Take the Next Step in Protecting Your Child’s Health

Food allergies can be stressful, but with the right support, your child can live a healthy and full life. At Bootin and Savrick Pediatric Associates, we have experience in working with families to create tailored allergy care plans and administer allergy testing.

Contact one of our offices in Greater Houston today to begin a plan that works for your family.

Medically reviewed by Dr. Patti Savrick