Food Sensitivity Test
Food sensitivities can trigger a wide range of chronic symptoms, from bloating and fatigue to skin flare-ups and brain fog, without you ever connecting them to what you eat. Advanced food sensitivity testing identifies your unique dietary triggers, giving you the knowledge to make targeted changes.
What it is
An IgG panel across 200+ foods.
A food sensitivity test is a comprehensive diagnostic assessment that measures your immune system's IgG antibody response to hundreds of different foods. Unlike a food allergy, which triggers an immediate reaction, food sensitivities produce delayed responses that can manifest hours or even days after eating, making them notoriously difficult to identify without testing.
At Dr Jinah Yoo Clinic we use advanced laboratory analysis to test up to 200+ foods, giving you a precise, personalised map of your dietary sensitivities so we can build an elimination and reintroduction plan tailored entirely to your body.
Food sensitivity testing is an increasingly powerful tool for unlocking better digestion, clearer skin and lasting vitality.
Benefits of testing
What identifying your triggers changes.
Resolves chronic digestive issues
Testing identifies the specific foods contributing to bloating, IBS, constipation, diarrhoea and abdominal discomfort, providing a clear, evidence-based path to gut healing.
Clears skin conditions
Many cases of acne, eczema, rosacea and psoriasis are directly linked to food sensitivities. Eliminating trigger foods can lead to dramatic improvements in skin clarity and texture.
Restores energy, reduces fatigue
Chronic inflammation caused by undetected food sensitivities is a leading driver of persistent fatigue. Removing trigger foods allows the body to redirect energy toward repair and vitality.
Reduces inflammation
Food sensitivities create a state of low-grade systemic inflammation linked to joint pain, headaches and accelerated ageing. Testing enables targeted dietary changes to reduce this burden.
Supports weight management
Inflammatory responses to sensitive foods can impair metabolism and promote water retention. Identifying and eliminating these foods often supports more effective and sustainable weight loss.
Improves mental clarity and mood
The gut–brain axis means food sensitivities can directly impact cognitive function, anxiety and low mood. Many patients report significant improvements in mental clarity following dietary adjustments.
“Sensitivities are rarely dangerous, but they cause chronic, low-grade inflammation that significantly impacts quality of life and long-term health.”
Testing and longevity
Inflammation is what ages you.
Chronic low-grade inflammation, often silently driven by unidentified food sensitivities, is one of the most significant contributors to accelerated biological ageing. At Dr Jinah Yoo Clinic, food sensitivity testing forms a key pillar of our regenerative longevity programme.
Nutrient absorption is compromised, cellular repair is impaired and the immune system is perpetually overloaded.
Removing your specific dietary triggers reduces the inflammatory burden and restores gut integrity.
Healthier skin, stronger immunity, enhanced cognitive function and a longer, more vibrant life.
Why test here
Interpreted, not just handed over.
Testing 200+ foods
Our comprehensive panels test a wide range of foods across all major categories (grains, dairy, proteins, fruits, vegetables, nuts and more), ensuring the most complete picture of your sensitivities.
Medically interpreted results
Your results are reviewed directly by Dr Jinah Yoo and her clinical team, who contextualise your findings within your overall health profile, not simply handed over as a list to decipher alone.
Elimination and reintroduction
We do not just identify sensitivities. We guide you through a structured, supervised dietary plan to eliminate triggers, heal the gut and safely reintroduce foods to build long-term tolerance.
Joined to gut and regenerative health
Results are combined with your wider treatment programme, including gut health protocols, IV nutrition and regenerative therapies, for a holistic approach to healing.
Do you need this test
Who it suits.
- Bloating or digestive discomfort
- IBS symptoms
- Persistent fatigue
- Skin conditions such as acne or eczema
- Recurring headaches or migraines
- Joint pain, brain fog or low mood
- Unexplained weight gain
- If your symptoms have no clear diagnosis, food sensitivities are often an overlooked root cause
- This is an IgG sensitivity test, not a test for IgE food allergy
- Sensitivity symptoms typically appear 2–72 hours after eating the trigger food
- Results guide a supervised dietary plan rather than standing alone
- Often combined with gut health protocols, IV nutrition and regenerative therapies
Your consultant
Reviewed by Dr Jinah Yoo.
Dr Jinah Yoo
MBChB FRCP · Consultant Dermatologist · FounderDr Yoo is a Korean, UK-trained consultant dermatologist and the founder and medical director of Dr Jinah Yoo Dermatology, with expertise spanning dermatology, immunology and aesthetic medicine.
Your results are reviewed directly by Dr Yoo and her clinical team, who contextualise the findings within your overall health profile and guide the dietary plan that follows.
- GMC-registered consultant dermatologist
- Fellow of the Royal College of Physicians (FRCP)
- Expertise in dermatology and immunology
- Follow-up consultation to review findings
Your journey, step by step
What actually happens.
Consultation
We review your symptoms, skin concerns, diet, medical history and goals, and confirm whether sensitivity testing is the right starting point for you.
In clinicBlood draw
The test is carried out using a simple blood draw at the clinic. Your sample is sent to an accredited laboratory where it is analysed against 200+ foods.
Accredited laboratoryResults reviewed
Once results are received, Dr Yoo's clinical team review your findings in detail and guide you through your personalised dietary plan during a follow-up consultation.
Follow-up consultationElimination and reintroduction
A structured, supervised plan removes your trigger foods, heals the gut and safely reintroduces foods to build long-term tolerance, integrated with gut health protocols, IV nutrition and regenerative therapies where relevant.
Supervised throughoutThe clinic
45 Albemarle Street, Mayfair.
Questions
Asked before booking.
A laboratory-based blood test that measures your immune system's IgG antibody response to a wide range of foods. Unlike an allergy test, it identifies delayed reactions that can occur hours or days after eating, helping to uncover hidden dietary triggers behind chronic symptoms such as bloating, fatigue, skin issues and brain fog.
The test is carried out using a simple blood draw at Dr Jinah Yoo Clinic. Your sample is sent to an accredited laboratory where it is analysed against 200+ foods. Once results are received, Dr Yoo's clinical team will review your findings in detail and guide you through your personalised dietary plan during a follow-up consultation.
A food allergy triggers an immediate IgE immune response: symptoms appear within minutes and can be severe or life-threatening. A food sensitivity involves a delayed IgG immune response, with symptoms typically appearing 2–72 hours after eating the trigger food. Sensitivities are rarely dangerous but cause chronic, low-grade inflammation that significantly impacts quality of life and long-term health.
Our comprehensive panel tests over 200 foods across all major food groups, including grains, dairy, eggs, meats, fish, fruits, vegetables, nuts, seeds, legumes, herbs and spices, giving you the most thorough and actionable picture of your dietary sensitivities.
You may benefit if you regularly experience bloating or digestive discomfort, IBS symptoms, persistent fatigue, skin conditions such as acne or eczema, recurring headaches or migraines, joint pain, brain fog, low mood or unexplained weight gain. If your symptoms have no clear diagnosis, food sensitivities are often an overlooked root cause.
Next step
Discover what your body is reacting to.
The test is a simple blood draw at the clinic, with results reviewed in a follow-up consultation.
