P88 Dietary Antigen Test

Sample Required: Urine | Test Type: Toxicity | Sample: View sample report

IMPORTANT: Please be wary that there are other labs out there doing food sensitivity testing via hair samples. To date, there is no scientific evidence to support food sensitivity testing via hair samples!

The P88 Dietary Antigen Test is one single test combining IgE, IgG, IgG4, and complement (C3d) reactions to 88 of the most common foods found in the diet. The P88 Dietary Antigen Test was the first test on the market to measure and report immune complexes containing C3d. Complement activation is well-defined in the research as not only a cause of inflammation, but one of the strongest causes.

A highly comprehensive test of immune reactions, Precision Point Diagnostics P88 Dietary Antigen Test helps you accurately identify and address food allergies and food sensitivities. Overt IgE-mediated food allergies can lead to hives, anaphylaxis or digestive issues while delayed food sensitivities (IgG and IgG4) are linked to sinus problems, acne, dermatitis, gas, bloating, fatigue, constipation, autism, irritable bowel syndrome and even depression. Identifying and eliminating food sensitivities can also assist in the healing of intestinal permeability.

Food Sensitivity Symptoms

• Diarrhoea or loose stool
• Constipation
• Gas or bloating
• Heartburn
• Rashes, eczema, psoriasis or swelling
• Joint pain or inflammation
• Headaches or migraine
• Congestion or runny nose
• Sinus infections
• Acne
• Irritable bowel syndrome
• Fatigue or poor sleep
• Depression
• Poor immune defences
• Malabsorption of vitamins and minerals

The Most Accurate Food Sensitivity Test
Precision Point Diagnostics provides reliable, reproducible semi-quantitative measurement of IgE, total IgG and IgG4 using an indirect ELISA (enzyme-linked immunosorbent assay). The system is also capable of detecting immune complexes that contain the complement marker C3d.

Other food sensitivity tests may have weak scientific basis or they may not give the full picture of food reactions (especially cheaper laboratories and those claiming they can asses your food sensitivities from a hair test)! Some tests use live cell analysis, which is not a scientifically accepted sign of true food sensitivity or allergic reaction. Other antibody assays may measure total IgG antibodies only; they could miss food reactions that activate the inflammatory complement cascade. Still, other tests may measure only a specific IgG subclass and miss out on information about our stand-alone IgG4 or combined IgG1, IgG2, & IgG3, which is reported as total IgG in the P88 Dietary Antigen Test.

Better Patient Outcomes
P88 Dietary Antigen Test results can lead to more precise treatment plans and better patient outcomes. Studies show that patients given an elimination diet based on the results of our food allergy and sensitivity testing experienced fewer headaches and less abdominal pain, diarrhoea, constipation and bloating. Knowing exactly what foods you react to can help to avoid unnecessarily restrictive diets and treatment protocols that inadvertently expose you to food triggers.

The P88 Dietary Antigen Test interpretive report includes more restrictive and less restrictive elimination diets as well as analysis of immune reactions by food groups. The P88 Dietary Antigen Test can spotlight the dietary components interfering with your healing.

Two P88 Test Options:

• Blood Spot (done from home) Test - $680
• Serum (requires a private blood draw) - $620*

If you live remote from a main city, then your easiest option is to choose a blood spot test. This test kits comes complete with instructions and 2 single use lancets where you are able to draw your own blood via a blood spot (similar to how a diabetic would prick their finger to monitor their blood glucose levels). The blood is administered to the lab paper (supplied), then return via a pre-paid courier bag (also supplied). 

The blood serum test is done at your local blood lab where you will need to pay a 'private blood draw' fee, which is usually around $80-$90 (depending on the lab). This cost will be additional to the purchase of the test and paid directly to the blood lab where you get your blood drawn. This option is best for those not wanting to take the test themselves or for children where it would be traumatic to do a blood spot test.

Functional Medical Tests – Costs, Terms & Timeframes

All functional test kits incur only minimal administrative costs and include a pre-paid courier bag with full instructions for self-collection and submission. Kits are dispatched to one of our New Zealand distributors — FxMed or Nutriscript — who consolidate and forward samples via weekly shipments to accredited laboratories in the United States or Australia.

The standard turnaround time for results is 3–5 weeks from the date of sample submission. If you have not received your results within 5 weeks, please contact us so we can follow up on your behalf.

Please note: Occasional delays may occur due to customs clearance, international courier disruptions, or laboratory backlogs. These are outside our control but we will assist in tracking and resolving any extended delays.

Once results are available, we receive them directly from the distributor and forward them to you on the same day. Laboratory reports typically include detailed interpretations, reference ranges, and explanatory notes.

We strongly recommend booking a follow-up consultation — either online or in person — to contextualise your results within your broader health strategy. This ensures accurate interpretation and integration into your personalised care plan.

Consultation fees are additional to the cost of the test kit.