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Identify hidden sensitivities with 24 clinically validated panels covering IgG, IgE, IgA, and IgG4. Uncover the root causes of chronic symptoms today.
Food allergies and sensitivities affect millions worldwide, yet many remain undiagnosed due to delayed reactions. MedEx offers a comprehensive suite of panels measuring IgG, IgE, IgA, and IgG4 to identify the specific triggers behind your symptoms.
Available across Thailand—from Bangkok to Phuket—our world-class functional pathology testing is accessible via simple home collection kits.
Your practitioner orders the test, a kit is shipped directly to you, and you return the sample via courier. No clinic visit is required for most panels.
We provide focused screenings to comprehensive full-spectrum panels. Choose the category that fits your needs:
Includes IgG for delayed sensitivities, IgE for immediate reactions, and IgA for mucosal immune health assessment.
Identify hidden food sensitivities and environmental allergies with 24 clinically validated panels covering IgG, IgE, IgA, and IgG4 antibodies. Test at home or visit our Bangkok clinic — results within 3 - 5 days.
Results in 3 - 5 days. Home collection available across Thailand.
Simple process
What the tests actually measure
Different antibodies in your blood tell a different story. Here's what each one means for your health.
From focused 96-food screenings to comprehensive 240-food panels. Every test can be completed at home with a simple finger-prick blood spot kit.
A broad-spectrum starting point for identifying both allergic and intolerance reactions across common food groups and environmental triggers.
GeneralCore IgG panel covering common Western dietary staples including dairy, gluten, eggs, nuts, meats, fruits, and vegetables.
IgG PanelTailored for Asian diets — covers rice varieties, soy products, seafood, tropical fruits, spices, and regional ingredients.
IgG PanelDesigned for plant-based diets: legumes, grains, seeds, nuts, soy proteins, vegetables, and common meat-free substitutes.
IgG PanelExtended screening combining Western and Asian foods with additional grains, herbs, and commonly consumed Thai ingredients.
IgG ExtendedOur most comprehensive panel. Tests IgG reactivity to 240+ food antigens — the definitive screening for complex symptom profiles.
Full SpectrumDetects true allergies — foods, inhalants, moulds, dust mites, and environmental triggers causing rapid immune responses.
IgE AllergyMeasures white blood cell changes when exposed to foods/chemicals. Identifies inflammatory reactions not captured by antibody tests.
ALCATScreens reactions to food colourants, preservatives, flavour enhancers, pesticides, and environmental chemicals.
ALCATBundled IgG + IgE + IgA testing for a multi-dimensional immune assessment. Ideal for complex cases with mixed symptoms.
Multi-AntibodySome food reactions hit you instantly. Others creep up quietly over hours or days — leaving you exhausted, bloated, or foggy with no obvious cause. Knowing which type you have is the first step to feeling better.
Your immune system fires an emergency alarm — within minutes of eating.
Your immune system builds a slow, silent response — symptoms creep in hours or days later.
At a glance
| Feature | Acute ReactionImmediate allergy | Latent ReactionDelayed intolerance |
|---|---|---|
| When do you feel it?After eating | Within minutes to 2 hours | 2 hours to 3 days later |
| How obvious is it?Linking food to symptom | Very obvious | Often invisible — hard to trace |
| What does it feel like? | Sudden, dramatic — hives, swelling, breathing problems | Gradual, vague — fatigue, bloating, brain fog, skin issues |
| Is it dangerous? | Can be life-threatening | Rarely dangerous, but chronic |
| What triggers it?Immune mechanism | IgE antibodies — your body's emergency alarm | IgG antibodies — a slow, background immune response |
| How many foods at once? | Usually 1–2 clear culprits | Often multiple foods — hard to pinpoint alone |
| Which test do you need? | IgE blood test (Microarray, ELISA, Lateral Flow) | IgG4 blood test (ELISA, EIA panel) |
| Can diet help? | Strict avoidance of trigger food(s) | Rotation or elimination diet, guided by results |
Side-by-side comparison
| What we compare | MicroarrayMost comprehensive | ImmunoblotProtein-level detail | ELISAGold standard | Lateral FlowQuick at-home strip | EIAFlexible lab test |
|---|---|---|---|---|---|
| What does it find?Allergy, intolerance, or both | Allergy only | Both | Both | Allergy mainly | Both |
| How many foods tested?Per single test | 300+ foods Most | 1–3 foods | One at a time | 1–3 foods | Varies |
| Do you get an exact result?Number vs yes/no | ✓ Exact level | ~ Approximate | ✓ Exact level Best | ✗ Yes / No only | ✓ Exact level |
| How fast?From sample to report | 3-5 days | 1–2 days | 3-5 days | 10–30 minutes Fastest | 2 weeks |
| Can it tell WHY you react?Identifies the exact protein trigger | ✓ Yes Best | ✓ Yes | ✗ No | ✗ No | ✗ No |
| Good for food intolerance?IgG / delayed reactions | ✗ No | ~ Limited | ✓ IgG4 panels | ✗ No | ✓ IgG panels |
| AccuracyClinical reliability | Very high | High | Very high | Moderate | High |
| Relative costInvestment level | Premium | Mid-range | Mid-range | Budget | Mid-range |
| Best for people who… | Want a complete allergy picture in one go | Need to confirm a specific suspected food | Want an exact antibody number for one food | Want a quick first check at home | Need a flexible format from their doctor |
A selection of our most requested tests — chosen by people with symptoms just like yours. Browse all panels or speak to our team to find the right fit.
For suspected true allergy: hives, swelling, wheezing, sneezing, itchy eyes, eczema flares, or reactions soon after exposure.
Structures a guided food-response discussion with a clinician or dietitian. Not a replacement for IgE allergy diagnosis.
The widest panel in this group, with follow-up planning support included. Best for complex or persistent cases.
Covers 96 of the most widely consumed foods. A practical starting point for identifying dietary triggers behind digestive or skin symptoms.
Tailored for plant-based diets. Covers grains, legumes, nuts, seeds, fruits, and vegetables most relevant to vegetarians.
Screens for reactions to dust mites, pollens, mould spores, pet dander, and other airborne triggers that affect breathing and skin.
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From BTS Nana
Walking · ~5 mins
From BTS Asok
Walking · ~7 mins
From MRT Sukhumvit
Walking · ~8 mins
From BTS Phra Khanong
Walking · ~3 mins
From BTS Saphan Taksin
Taxi / Grab · ~10 mins
From Bus Terminal 3
Taxi / Songthaew · ~5 mins
MedEx offers IgG, IgE, IgA, and IgG4 allergy panels in Thailand. These include general food panels (96, 144, and 240 foods), Asian food panels, vegetarian panels, mould panels, inhalant panels, and combination panels. Tests are available via home collection kits with blood spot finger prick samples.
A food sensitivity test measures your immune response (IgG or IgA antibodies) to specific food proteins. A blood sample is collected via a simple finger prick at home, then sent to the laboratory for analysis. Results identify foods that may be causing delayed reactions such as bloating, fatigue, headaches, or skin issues.
IgE testing detects immediate allergic reactions (e.g., to peanuts or shellfish) that occur within minutes. IgG testing identifies delayed food sensitivities that can take hours to days to manifest. IgA testing evaluates mucosal immune responses, indicating potential gut membrane damage from specific foods.
Yes, MedEx services are available across Thailand. Your healthcare practitioner places the order, a home test kit is sent to your address, and you return the sample via courier. Results are provided through your referring practitioner.
Yes, MedEx operates under a practitioner-referral system. A qualified healthcare practitioner orders the test and provides guidance on interpreting results. MedEx can help you find a suitable practitioner if you don’t have one.
MedEx recommends that IgG and IgE allergy testing is performed for individuals greater than 18 months of age. This ensures that the immune system has had sufficient development and food exposure to produce measurable antibody levels.
Most lab results are available within 24–48 hours. Results are securely delivered via encrypted PDF reports directly to your email.
We operate an in-house laboratory equipped with medical-grade instruments and rigorous quality control protocols for maximum accuracy.
Book your allergy test today. Home collection kits available across Thailand with results in 24–48 hours. English reports and practitioner-guided interpretation included.
Rating
good service. with attention and care.
I have no words, they saved us
Fast results , polite , clean , fair price
The staff were helpful and the process was smooth . Results and documents were provided as requested. Very professional
Best clinic in Bangkok. I have been there two times and one time they helped me organize a visit in another hospital without any fees! The best! Highly recommended
Fast and efficient clinic, great service from Flor
MedEx was very efficient and they were quick to respond to my messages. The test results were very detailed and well organized in the final report. A doctor video called me and went over all my test results. My experience with MedEx was as good as anything I experienced dealing with many specialists in the USA Thanks!
I sent a query via WhatsApp regarding a ongoing medical issue and needed a quick checkup, They responded instantly to confirm they could help and did so that evening.
They are open day everyday and would recommend for anyone looking for English staff and good customer service.
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Last updated: June 30th, 2022
If you’re dissatisfied with a purchase, We invite You to read our refund and return policy. The following conditions apply to any items or services that you bought from Us.
The meanings of words with the first letter capitalized are defined as follows. The following definitions shall have the same meaning regardless of whether they appear in singular or plural.
For the purposes of this Refund and Return Policy:
You are entitled to cancel Your Order for Packages as per the following terms:
3.1 If you cancel an Order before 4 PM (GMT+7) the next day after making the payment, you can receive an 80% refund. For example, if you want to cancel your reservation, for example, after making it on March 25th, 2022 at 10 AM; You may do so and receive an 80% refund if you notify the company before 4:00 PM on March 26th, 2022.
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