Hazelnut IgE level
Private Hazelnut IgE testing in London for £55, measuring one food-allergy marker with results expected in around 1 business day.
Turnaround time
1 business day
Biomarkers count
1
Book your test
Choose Service Type
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
Home Visit Details
Home visits require at least 24 hours notice.
Select a clinic: Sorting by distance…
{{ clinicAddress(clinic) }}
{{ clinicAddress(selectedClinic) }}
Select a date
Select an hour
Available time slots: {{ timeSlots.length}}
Overview of the Hazelnut IgE level Test
The Hazelnut IgE level blood test measures specific IgE antibodies directed against hazelnut proteins.
The test contains 1 biomarker: Hazelnut IgE level.
IgE-mediated food allergy develops when the immune system becomes sensitised to proteins within a food and produces specific IgE antibodies against them.
If the food is subsequently eaten, this immune response can trigger symptoms such as oral itching, hives, swelling, gastrointestinal symptoms, wheezing or anaphylaxis.
A positive Hazelnut IgE result demonstrates sensitisation to hazelnut proteins.
Sensitisation is not the same as proven clinical allergy.
Some people have detectable hazelnut-specific IgE but eat hazelnuts without symptoms.
This issue is particularly important with hazelnut because cross-reactivity with pollen can produce positive blood tests.
People sensitised to birch and related tree pollens may produce antibodies that recognise similar proteins in hazelnut.
This can lead to pollen-food syndrome, which typically causes itching or tingling in the mouth after eating raw hazelnut and may differ clinically from primary systemic hazelnut allergy.
Component-resolved allergy testing can sometimes help distinguish sensitisation to more stable storage proteins from pollen-related cross-reactive proteins.
The concentration of Hazelnut IgE can influence the probability of true clinical allergy but does not reliably predict how severe a future reaction will be.
The result should therefore always be interpreted with a clear history of what happened after eating or handling hazelnuts.
What Does the Hazelnut IgE level Test Check?
This test measures the immune system's specific IgE response to hazelnut and provides laboratory evidence of allergic sensitisation. This test measures 1 biomarker.
Hazelnut IgE level
Measures hazelnut-specific IgE antibodies in blood to support assessment of IgE-mediated sensitisation to hazelnut proteins.
Who May Benefit From the Hazelnut IgE level Test?
Hazelnut-specific IgE testing is most useful when symptoms occur consistently after hazelnut exposure or where cross-reactivity with pollen is suspected.
People who experience symptoms shortly after eating hazelnuts - A reproducible immediate reaction makes specific-IgE testing clinically relevant.
People with itching or tingling in the mouth after hazelnut - This can occur with pollen-food syndrome.
People who develop hives after eating hazelnut - Urticaria can be part of an IgE-mediated reaction.
People who experience lip or facial swelling after hazelnut - Immediate swelling warrants appropriate allergy assessment.
People with birch-pollen allergy and reactions to hazelnuts - Cross-reactive pollen proteins can produce clinically relevant or misleading positive results.
People who have reacted to mixed nuts and do not know which nut was responsible - Targeted testing can help narrow the suspected trigger.
People who cannot undergo skin-prick testing - Serum specific IgE provides an alternative laboratory method.
People with a previous positive hazelnut test requiring reassessment - Repeat testing can sometimes be useful alongside changes in clinical history.
How to Prepare
Do not deliberately expose yourself to hazelnut before testing.
Where pollen-related cross-reactivity makes the result difficult to interpret, component-resolved allergy testing may provide additional information.
Symptoms and Reasons to Consider the Hazelnut IgE level Test
IgE-mediated food-allergy symptoms typically occur relatively quickly after exposure.
Itching or tingling in the mouth - Oral symptoms are common in pollen-food syndrome.
Swelling of the lips, tongue or face - Angioedema can occur during an allergic reaction.
Hives or an itchy rash - Urticaria is a common IgE-mediated skin symptom.
Nausea, abdominal pain or vomiting after hazelnut - Gastrointestinal symptoms can occur during food-allergic reactions.
Wheezing or breathing difficulty - Respiratory involvement can indicate a more serious systemic reaction.
Throat tightness - This can be a feature of anaphylaxis and requires urgent treatment.
Dizziness or collapse after exposure - Cardiovascular involvement is a medical emergency.
Repeated oral symptoms in someone with seasonal tree-pollen allergy - Cross-reactive pollen-food syndrome may be responsible.
Difficulty breathing, throat swelling, collapse or rapidly progressive symptoms after hazelnut exposure can represent anaphylaxis and requires emergency treatment.
Do not deliberately eat hazelnuts to test whether an allergy is still present if you have previously experienced a significant reaction.
How to Book Your Hazelnut IgE level Test
The Hazelnut IgE level test can be booked privately for targeted assessment of possible hazelnut sensitisation.
Choose the Hazelnut IgE level
Select the individual Hazelnut IgE blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy.
Attend your appointment
A trained healthcare professional collects the required venous blood specimen.
Laboratory analysis
Your serum is analysed for specific IgE antibodies directed against hazelnut.
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside your allergy history.
When Will I Receive My Results?
The expected turnaround for Hazelnut IgE level testing is approximately 1 business day after the sample reaches the laboratory.
Specific-IgE testing is performed through an allergy laboratory pathway.
The sample undergoes analysis, quality-control procedures and result authorisation before reporting.
Turnaround begins from laboratory receipt rather than necessarily from the exact time of blood collection.
More specialised hazelnut component testing, if subsequently required, can have a different turnaround.
Understanding Your Results
A low or undetectable result makes IgE sensitisation to hazelnut less likely.
A positive result means hazelnut-specific IgE has been detected.
This demonstrates sensitisation but does not independently prove clinical allergy.
The result is particularly important to interpret carefully in people with tree-pollen allergy because cross-reactive antibodies can produce a positive Hazelnut IgE result without the pattern expected in primary systemic nut allergy.
Higher specific-IgE levels may increase the probability of clinical allergy in some settings, but there is no universal number that accurately predicts symptoms for every patient.
The measured concentration also does not predict whether a future reaction will be mild or severe.
Clinical history remains essential.
Where results and symptoms conflict, an allergy specialist may consider component-resolved diagnostics or a supervised food challenge.
Why Book With London Blood Tests?
London Blood Tests provides targeted private testing for hazelnut-specific IgE without requiring deliberate food exposure.
Specific hazelnut allergy marker - Measures IgE antibodies directed against hazelnut proteins.
Blood-based assessment - No deliberate hazelnut challenge is required.
Useful when skin testing is difficult - Serum IgE provides an alternative first-line allergy investigation.
Antihistamines generally do not interfere - Blood IgE testing can usually be performed while antihistamines are being used.
Relevant to pollen-food syndrome - Results can be considered alongside pollen sensitisation.
Fast laboratory turnaround - Results are expected in approximately 1 business day.
Professional blood collection - Private phlebotomy options are available.
Clear pricing - The Hazelnut IgE level test costs £55.
Private Hazelnut IgE level Blood Test in London
London Blood Tests provides private Hazelnut IgE testing in London for people undergoing assessment of possible IgE-mediated hazelnut allergy.
The test costs £55 and measures 1 biomarker: Hazelnut IgE level.
Results are expected approximately 1 business day after laboratory receipt.
A positive result indicates sensitisation and should be interpreted alongside symptoms, pollen allergy and actual exposure history.