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Food Allergy

Food allergy occurs in 6% of the population less than 5 years of age and in 3.5-4% of the adult population. Food allergies most often start in infants and young children but they can occur at any age. Common food allergens in infants/children include milk, egg, and peanut and in adults shellfish, fish, and tree nuts.

Symptoms from food allergy may occur immediately and/or up to several hours after the ingestion of a food. Symptoms include hives, swelling, wheezing, cough, choking, immediate vomiting, and a runny nose/sneezing. It is very rare for isolated symptoms in the nose or lungs to occur with a food allergy.

Occasionally, there may only be isolated itching of the mouth or throat with the ingestion of raw fruits and/or vegetables, a condition called Oral Allergy Syndrome or Food-Pollen Syndrome. This occurs because of a cross-reaction between the allergens in pollens and foods.

Diagnosing a food allergy requires a careful history, physical exam, food skin testing and/or blood allergy testing, and, in some cases, an oral food challenge. For a food challenge, you will be asked to bring the food into the office so it can be administered starting with a very low dose and then building up over several doses in a controlled safe environment. Your BVAAC board-certified allergist will take all of these factors into account when diagnosing your food allergy. It is possible to have a positive allergy test to a food and yet not react to the food when eaten. Always speak to your BVAAC board-certified allergist before giving any food that might have the potential to cause an allergic reaction!

The National Institute of Allergy and Infectious Disease (NIAID) has  published a layman's summary of the food allergy guidelines. This set of guidlelines sets the standard of care for the management of food allergy in the United States. It is available as a pdffree download from the NIAID website.

There is no cure for food allergies. Some foods, such as milk and egg, will probably be outgrown over time. Others, such as peanuts, tree nuts, and shellfish, may persist indefinitely. The management of food allergy usually consists of a combination of training in avoidance, symptom recognition,  and use of injected epinephrine in conjunction with a food allergy action plan in the event of a significant food allergy reaction. Extensive education in regards to avoidance, label reading, symptom recognition, knowledge of cross-reacting allergens, utilization of epinephrine, etc. is absolutely necessary. Your BVAAC board-certified allergist is well trained in all aspects of food allergy management. If you think that you or a family member has a food allergy, call us at (208)-378-0080 or click here to make an appointment request online.

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Common Food Allergy Symptoms

Symptoms from food allergy may occur immediately, and/or within a few minutes after the ingestion of a food. Symptoms include: 

  • hives
  • swelling
  • wheezing
  • cough
  • choking
  • immediate vomiting
  • runny nose/sneezing
  • isolated itching of the mouth or throat (occasionally)

If you suspect your or your child has a food allergy, call (208) 378-0080 today and make an appointment.