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Food Intolerance (IgG Panel)

Type

Blood Testing

Biomarkers

5

Duration

30 min

What's included

4 deliverables in this treatment

  • Blood draw for IgG antibody testing
  • Comprehensive food panel (dairy, grains, proteins, legumes, fruits, vegetables)
  • Colour-coded results report by reactivity level
  • Consultation with elimination and reintroduction guidance

A food intolerance test measuring immunoglobulin G (IgG) antibody levels against a broad panel of common foods. Unlike IgE-mediated allergies which produce immediate reactions, IgG-associated food intolerances typically cause delayed symptoms appearing hours to days after consumption — including bloating, headaches, fatigue, skin issues, and digestive discomfort. The test identifies foods that produce elevated IgG responses, providing a starting point for elimination and reintroduction dietary strategies.

About this treatment

The Food Intolerance IgG Panel at Blessono Specialist Clinic measures immunoglobulin G antibody levels against a broad panel of foods from a single blood draw, helping identify foods that may be contributing to chronic, delayed-onset symptoms.

IgG-mediated food reactions differ fundamentally from IgE allergies. While IgE responses are immediate (within minutes) and often dramatic (hives, swelling, anaphylaxis), IgG-associated food intolerances are delayed — symptoms may appear 4 to 72 hours after eating the trigger food, making identification through observation alone extremely difficult. Common symptoms associated with elevated IgG food reactivity include bloating, abdominal discomfort, gas,…

The panel tests reactivity to a comprehensive range of foods across major categories: dairy products (cow's milk, casein, whey, goat's milk, cheese), grains and cereals (wheat, gluten, barley, oats, corn, rice), proteins (chicken, beef, pork, lamb, fish, shellfish, eggs), legumes and nuts (soy, peanut, almond, cashew, lentils), fruits and vegetables (tomato, potato, banana, citrus, berry varieties), and common additives and flavourings.

Good to know

Foods tested
Comprehensive panel across all major categories
Methodology
IgG antibody blood test
Turnaround
5-10 working days
Appointment
~30 minutes

Who is this for?

Anyone experiencing chronic bloating, digestive discomfort, or irregular bowel patterns, those with persistent headaches or fatigue that may be diet-related, people with skin conditions such as eczema that may have dietary triggers, and health-conscious individuals wanting to optimise their diet based on immune reactivity data

Preparation required

No fasting required. For the most clinically useful results, maintain your normal diet in the weeks leading up to the test — eliminating foods before testing may produce false negatives for those items. Bring a dietary log if possible.

Panel categories

Allergy Panel

Biomarkers tested

5
Histamine
IgE kU/L

Immunoglobulin E (IgE) is a protein associated with allergic reactions that is normally found in very small amounts in the blood. IgE functions as part of the body's immune system (its defence against 'intruders').

IgG mg/dL

Immunoglobulin G (IgG) is the most common type of antibody in the blood, important for fighting bacterial and viral infections.

pH pH units

Imbalances in gut pH influence short-chain fatty acid production and their effects.

Tryptase

About the clinic

Reviews, team and credentials

Independent review links and clinic-reported team information.

4.9

295 clinic reviews

From independent platforms

Clinical team

Medical team including specialist physicians who conduct all consultations and results reviews. Global Health Awards 2024 Health Screening Clinic of the Year. Staff serve patients in English, Malay, Indonesian, and Cantonese.

Languages: english, malay, indonesian, cantonese

View the full Blessono Specialist Clinic profile
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RM 598