Testing ยท Usus dan Pencernaan

Food Allergy and Tolerance Test

IgE allergy panel and structured elimination. Allergy and intolerance are not the same thing.

  • OrderedAfter consultation
  • ResultsRead in a separate session

Reviewed by Dr Munirah Hishamshah · MMC 62691

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Why this test is orderedGut & Digestion

Quick Answer

Food allergy and food intolerance are two different things, and we test them in different ways.

A food allergy test and an intolerance panel are not the same thing, although people mix them up constantly. Allergy involves an IgE immune reaction that can appear within minutes and sometimes threatens life. Intolerance is slower, vaguer, and does not run through the same immune pathway.

What a food allergy test covers

  • Specific IgE for foods common in Malaysiaprawn, crab, peanut, egg, milk, wheat, fish
  • Total IgE and eosinophil count
  • IgG panel for pattern spotting, not diagnosis
  • Hydrogen breath testing for lactose tolerance where indicated
  • Basic gut markers when symptoms point more to digestion

The details

This test is ordered after a consultation, and the results are read with you in a separate session.

Location
Damansara Perdana and I-City
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How this test runs

  1. 01Separate allergy from intoleranceA true food allergy triggers IgE antibodies and the symptoms are fast and obvious. Intolerance instead gives bloating, fatigue after eating, or a headache hours later.
  2. 02Testing is ordered from what the symptoms point toThe cause of intolerance is often not immune at all, but a missing enzyme such as lactase, or sensitivity to compounds such as FODMAPs.
  3. 03Structured eliminationSuspected foods are removed for three to four weeks, then reintroduced one at a time while symptoms are recorded. We build that schedule with you, so your nutrition stays adequate throughout.

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Food allergy against intolerance

Food allergyIntolerance
MechanismIgE antibodiesOften not immune at all
SymptomsSwollen lips, rash, breathlessness, vomitingBloating, fatigue after eating, headache
TimingFast and obviousHours later
Common causeAn immune reactionA missing enzyme such as lactase, or sensitivity such as FODMAPs
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What it cannot do

Limits of a food allergy test

Testing cannot explain every digestive symptom. Persistent bloating sometimes comes from H. pylori, bacterial overgrowth, or gut motility rather than a particular food. If your symptoms point that way, a stool test suits better. Reference information is published by the Ministry of Health Malaysia. Book a consultation.

Every iLIV guide is written and reviewed under our editorial standards, and each one carries the name of the reviewing doctor together with their MMC registration number.

Allergy versus intolerance

A true food allergy triggers IgE antibodies. The symptoms are fast and obvious: swollen lips, rash, breathlessness, vomiting. Intolerance instead gives bloating, fatigue after eating, or a headache hours later. Its cause is often not immune at all, but a missing enzyme such as lactase, or sensitivity to compounds such as FODMAPs.

An honest note on IgG panels

Food IgG panels are popular although the evidence is weak. IgG antibodies to a food can simply mean you have eaten it, not that you react to it. So we use IgG results as one pointer for structuring an elimination trial rather than as a permanent banned list. Anyone selling you forty forbidden foods on IgG alone is overpromising.

Structured elimination

For most intolerance cases, structured elimination is still the most reliable method. We remove the suspected foods for three to four weeks, then reintroduce them one at a time while recording symptoms. We build that schedule with you, so your nutrition stays adequate throughout. Read the gut health pathway and the guide to gut problems.

The two options offered

Two options are offered, and the difference matters.

A food tolerance test on its own. This measures intolerance responses rather than allergy. It does not confirm a true allergy.

A combined 107-allergen panel with food tolerance. This adds an allergen panel to the tolerance test, so two different questions are answered from one sample.

If your symptoms point to a true allergy, meaning a fast reaction, hives, swelling or breathing trouble, the combined panel is the more appropriate starting point. The doctor will say which one is relevant after hearing your history, and if that history points to serious allergy, referral to an immunologist is more appropriate than a clinic panel.

Frequently Asked

Can I trust IgG testing?

The evidence is weak. IgG shows you have eaten a food, not that you react to it. We use it as a pointer, never as a banned list.

Do I need to fast?

No. If you take antihistamines, stop three to five days beforehand after discussing it with the doctor.

How long does elimination take?

Three to four weeks off, then reintroduce one food at a time.

Still have questions?
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An initial consultation to understand your situation before any testing is recommended.

Damansara Perdana · I-City, Shah Alam · +60 14-801 6493

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