Soy Allergy Testing
View All TestsWhat Is Soy Allergy?
Soy allergy is an IgE-mediated food allergy to proteins in soybeans. It is common in young children and is often outgrown, though it can persist into adulthood. Soy is a ubiquitous ingredient in processed foods, making avoidance challenging.
Component testing is particularly useful for soy allergy. Gly m 4 is a PR-10 protein that cross-reacts with birch pollen — sensitisation to this component often causes mild oral symptoms and may indicate pollen-related food sensitivity rather than primary soy allergy. Gly m 5 and Gly m 6 are seed storage proteins associated with more significant reactions.
Results are provided directly to you to share with your GP or allergist for interpretation and dietary management.
How Testing Works
Choose Your Test
Select from our range of allergy blood tests and book a convenient time at our South Kensington clinic. No GP referral needed.
Nurse Blood Draw
A qualified nurse takes a small blood sample at our clinic. The appointment is quick and straightforward.
Get Your Results
Results are sent directly to you, typically within a few working days. Share them with your GP or specialist to guide your next steps.
Recommended Tests for Soy Allergy
Why Choose a Diagnostic-Only Clinic?
Unlike clinics that provide both testing and treatment, our nurse-led service focuses solely on accurate diagnostic testing. Because we don't offer treatments or prescriptions, there is no commercial incentive to recommend unnecessary tests — just honest, impartial results you can trust.
Nurse-Led & Impartial
Our qualified nurses collect your sample — we don't prescribe, treat, or have any reason to upsell.
Results You Own
Your results are sent directly to you. Take them to your GP or a specialist to discuss what's best for your situation.
You Stay in Control
Understand your allergy profile, then decide with your healthcare professional what steps to take next.
Related Reading
Frequently Asked Questions
Is soy allergy related to birch pollen allergy?
In many cases, yes. Gly m 4, a soy protein, is structurally similar to the major birch pollen allergen Bet v 1. Birch pollen-sensitised individuals may react to soy through cross-reactivity, typically causing milder oral symptoms.
Is soy lecithin safe if I have soy allergy?
Soy lecithin contains minimal protein and is generally tolerated by most soy-allergic individuals. However, individual tolerance can vary. Discuss this with your allergist before making dietary changes.
Do I need a GP referral for allergy testing?
No. You can book directly with our clinic without a GP referral. Simply choose your test and select a convenient appointment time. If you're unsure which test is right for your symptoms, our team can help guide your selection.
Do I need to stop taking antihistamines before a blood test?
No. Unlike skin prick testing, IgE blood tests are not affected by antihistamines or other allergy medications. You can continue taking your regular medications before your appointment.
What should I do with my results?
As a diagnostic-only clinic, we provide results directly to you. We recommend sharing them with your GP or allergist for interpretation and to discuss dietary management.
Get Detailed Soy Allergy Testing
Book a blood test at our South Kensington clinic
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