Food Allergy Testing San Antonio, TX
Patch Testing
San Antonio, TX
Stop Guessing Which Foods Are Making You Sick
The hives show up after dinner but you can’t say which dish caused them. You’ve cut out dairy, then nuts, then gluten, and you still react. Maybe you’re avoiding a dozen foods “just in case” and your meals keep shrinking. You don’t need another elimination diet. You need to know exactly what your body is reacting to.
Food allergy testing at Juniper Allergy in San Antonio identifies the precise foods triggering your reactions.
Dr. Amanda Trott-Gregorio will confirm your true food allergies, rule out the foods you can safely eat again, and give you a clear plan so you can stop living in fear of your next meal.
Meet Dr. Amanda Trott-Gregorio
For more than 10 years, Dr. Amanda Trott-Gregorio has been helping families across San Antonio overcome allergies and immune-related conditions. As a board-certified Allergist and Immunologist, she combines extensive clinical expertise with a caring, patient-first approach, ensuring every individual receives thoughtful, personalised treatment.
Raised in South Texas, Dr. Trott-Gregorio completed her undergraduate studies at Texas A&M University in 2001 before earning her medical degree from St. George’s University School of Medicine in 2007.
She then completed her residency at the University of Texas Medical Branch (UTMB) in Galveston, followed by a highly regarded fellowship in Allergy and Immunology at Washington University in St. Louis. This advanced training provided the foundation for the evidence-based, compassionate care she delivers to patients today.
Insurance We Accept
Insurance We Accept
What Is Food Allergy Testing?
Food allergy testing is a set of diagnostic tools designed to identify which foods trigger a true allergic reaction, so you stop avoiding foods you don’t need to avoid and start protecting yourself from the ones that matter.
A real food allergy involves your immune system, and the right test depends on your history. Skin prick testing places tiny amounts of food extract on your skin and checks for a quick reaction within about 15 minutes.
Blood testing measures specific IgE antibodies to individual foods and is useful when skin testing isn’t an option. When results are unclear, a supervised oral food challenge, the gold standard, confirms whether a food is genuinely a problem under medical observation.
Could Food Allergy Testing Be Right for You
✓ Your mouth, lips, or throat tingle or itch after raw fruits or vegetables
✓ You get stomach pain, nausea, vomiting, or diarrhea that seems tied to meals
✓ You’ve had a severe reaction before, or you carry an epinephrine auto-injector
✓ You’re avoiding many foods “just to be safe” without knowing your real triggers
✓ Your child has eczema or reactions you suspect are food-related
✓ You react hours after eating red meat and want to check for alpha-gal syndrome
What to Expect: The Food Allergy Testing Process
1
Initial Consultation
Our allergy specialist reviews your symptoms, reaction history, and diet to recommend the most appropriate testing for you.
2
Testing
We conduct your test in-clinic using precise, proven methods, designed to be as comfortable and accurate as possible.
3
Results
Your results are carefully reviewed and interpreted by our board-certified allergy specialist right here in our San Antonio clinic.
4
Your Personalized Plan
We walk you through what you can eat, what to avoid, and how to stay safe, with a plan built specifically for you.
Hear It from Our Happy Patients!
Why Choose Juniper Allergy For Food Allergy Testing in San Antonio
Board-Certified Allergist
Receive care from board-certified Allergists and Immunologists dedicated to accurate diagnosis, advanced treatment, and exceptional patient outcomes.
Serving San Antonio for Over 13 Years
For more than a decade, Juniper Allergy has been a trusted choice for comprehensive allergy, asthma, and immunology care for patients of all ages
Care Personalized to You
Your symptoms, medical history, and lifestyle are unique. That’s why we create personalized treatment plans designed to provide effective, long-term relief
A Team That Truly Cares
We take the time to listen, educate, and support you throughout your care, building lasting relationships based on trust, compassion, and open communication
Conditions Diagnosed By Food Allergy Testing
IgE-Mediated Food Allergy
Classic immune reactions to foods like peanuts, tree nuts, shellfish, fish, milk, egg, wheat, soy, and sesame, ranging from hives to anaphylaxis.
Oral Allergy Syndrome
Itching or tingling in the mouth after raw fruits, vegetables, or nuts, caused by proteins that cross-react with pollen allergies.
Alpha-Gal Syndrome
A delayed allergy to red meat triggered by a Lone Star tick bite, common across Texas, where symptoms appear several hours after eating.
Food-Induced Anaphylaxis
A serious, fast-moving reaction involving breathing, blood pressure, and swelling, where confirming the trigger and carrying epinephrine is essential.
Eosinophilic Esophagitis
Trouble swallowing, food getting stuck, or reflux that doesn’t respond to usual treatment, where food triggers are part of the workup.
You Don’t Have to Live in Fear of Your Next Meal
Frequently Asked Questions
How much does food allergy testing cost in San Antonio?
Cost depends on which tests and food panels you need and your insurance coverage. Most plans cover medically necessary food allergy testing. Call us at (210) 888-1297 before your appointment and our team will walk you through your costs clearly.
Is food allergy testing painful?
Skin prick testing involves a light scratch on the surface of the skin and is well tolerated, even by children. Blood testing is a standard blood draw. Most patients are surprised by how quick and comfortable the process is.
What's the difference between a food allergy and a food intolerance?
A food allergy involves your immune system and can cause hives, swelling, or anaphylaxis. A food intolerance, like lactose intolerance, mainly causes digestive discomfort and is not life-threatening. Our testing is built to tell these apart so you get the right answer.
Should I stop taking antihistamines before my test?
Antihistamines can interfere with skin testing, so we usually ask you to pause them for several days beforehand. We’ll give you clear instructions when you book, and blood testing remains an option if stopping isn’t practical for you.
Can my child be tested for food allergies?
Yes. We regularly test children for food allergies using methods chosen for their age and comfort, and we guide families through results and next steps with care.