About IgG Allergy Testing

The IgG food intolerance test is a useful tool for detecting the foods causing delayed reactions The results provide an easy, precise and effective starting point for dietary manipulation.

An IgG reaction can occur hours to days after exposure to the allergen; food or inhalant. This type of reaction is referred to as a delayed sensitivity reaction and is different to an IgE reaction, which occurs about the time immediately after exposure to the allergen; food or inhalant.

Representing approximately 75% of serum immunoglobulins in humans, IgG is the most abundant antibody found in the circulation and are found in all body fluids. IgG molecules are synthesized and secreted by plasma B cells. IgG antibodies are very important in fighting bacterial and viral infections. IgG antibodies are the only type of antibody that can cross the placenta in a pregnant woman to help protect her baby (fetus).

IgG Allergy Testing

The IgG test will not identify acute immediate food allergies (IgE). If you have immediate or IgE mediated food allergies please continue to avoid these items even if they do not appear on your list of foods to avoid. It is recommended that IgG allergy testing is only performed for infants greater than 18 months of age.

Food sensitivities can cause a wide range of symptoms and disorders. The foods that cause these delayed reactions are often hard to diagnose because of the time between consumption and the physical reaction. The IgG food sensitivity test offers a useful tool for detecting the foods causing this response. The results are patient specific and provide an easy, precise and effective starting point for dietary manipulation.

Common Symptoms & Conditions Associated With IgG Food Sensitivity Or Intolerance

Common symptoms of food intolerances

  • Headaches/Migraines
  • Fatigue
  • Irritable Bowel Syndrome
  • Leaky gut
  • Abdominal bloating
  • Fluid retention
  • Depression
  • Mood disorders
  • Skin conditions
  • Behavioural problems (ADD/ADHD)
  • Hives
  • Weight changes
  • Swelling
  • Wheezing
  • Abdominal cramping
  • Diarrhoea
  • Skin rashes

Conditions which frequently have Food Reaction Components

  • ADHD
  • Difficulty losing weight or weight loss
  • Inflammatory bowel disease
  • Arthritis
  • Irritable bowel syndrome
  • Asthma
  • Migraine
  • Eczema
  • Mouth ulcers
  • Otitis media
  • Fatigue
  • Psoriasis


Food Intolerance Test Pricing

The below prices are to give you an indication of cost for the testing panels. Some tests may incur a blood collection fee ($35), and some discounts do apply if more than one panel is ordered. Your practitioner is also able to tailor some tests specifically for you, and this may result in price changes too.


IgG 96 food


IgG 144 food


IgG 240 food

What We Can Help With

The team at Perpetual Wellbeing support the health and wellbeing of the whole family. We promote a more scientifically-based approach to natural healthcare, to help detect the root cause of health issues and treat patients for long-term good health.

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