Looking for a food intolerance test or an allergy test in New Zealand? There's no single test that covers every question. The three main routes are your GP, a registered dietitian, and an at-home food intolerance test. This guide walks through what each one can and can't do, what it costs in New Zealand dollars, and how they fit together.
Allergy, intolerance or sensitivity?
It helps to know which question you're asking. A food allergy involves the immune system, usually comes on quickly and can be serious. A food intolerance or sensitivity tends to build more slowly, often hours after eating, and shows up as everyday discomfort: bloating, wind, tummy cramps, loose stools, headaches, tiredness or brain fog.
True allergies are only around 10% of reactions to food. Intolerances and sensitivities are the main cause of the everyday discomfort most people put up with, which is why many Kiwis looking into their symptoms start there. Our guide to recognising the symptoms of food intolerance and our symptoms page list the common signs. The food intolerance symptoms chart puts the usual patterns in one place.
New Zealand Food Safety has a clear page on food allergies and intolerances, including which allergens must be listed on food labels here. Reading labels helps whatever you find out.
If you ever have swelling of the lips, tongue or throat, trouble breathing, or feel faint after eating, that's an emergency: call 111.
Route 1: your GP
Your GP is the right first stop, mainly to rule out anything that needs medical care. Depending on your symptoms, they may:
- Check for coeliac disease. Coeliac disease is an autoimmune condition, not an intolerance, but the symptoms overlap. It starts with a blood test through your GP, and you need to keep eating gluten until you've been tested, because cutting it out first can affect the result.
- Look at lactose. Your GP may suggest a short trial without dairy, or arrange further checks.
- Talk about IBS. If your symptoms point to irritable bowel syndrome, they may mention diet changes such as a low FODMAP approach.
- Refer you for allergy testing if you've had fast reactions such as hives or swelling.
What it costs. GP visits usually carry a fee in New Zealand, although many practices charge less if you're enrolled with them or have a Community Services Card. For free health advice any time, call Healthline on 0800 611 116.
What a GP usually can't do is give you one test that lists everything you're sensitive to. For everyday intolerances, the next step is usually a food diary and a dietitian.
Route 2: a registered dietitian
In New Zealand, look for a registered dietitian. You can search the Dietitians NZ Find a Dietitian directory by location and area of practice.
A dietitian will usually start with your food and symptom diary, then guide you through an elimination diet: cutting out suspected foods for a few weeks, then bringing them back one at a time to see what happens. It works, but it's slow, and it's much easier when you know where to start.
What it costs. You don't need a referral to see a dietitian privately. Fees vary by practice, so ask when you book. Some health insurance extras cover part of the fee.
Start your diary now, whichever route you choose. Our free food and symptom diary template makes it easy.
Route 3: an at-home hair sensitivity test
This is where many of our New Zealand customers start, because it gives you a shortlist to take to your diary and your dietitian. It works differently from anything your GP orders. It doesn't use blood or measure antibodies. You send a small hair sample, and our testing team uses bioresonance to look for potential sensitivity patterns across hundreds of food and non-food items, such as additives, metals and environmental items. Our guide to how hair sensitivity testing works explains the method, and our hair intolerance test NZ post covers posting your sample from anywhere in the country.
In New Zealand our tests come with digital instructions: you get a link by email, cut a small hair sample and post it to us in your own envelope. Here's what you're ordering with digital instructions and what happens after you send your hair sample. Results arrive in 5–7 working days once your sample is received. International post time from New Zealand is separate.
If you'd like the widest range of items, the Optimum Sensitivity Test checks 1,600. If you'd rather start smaller, the Individual Sensitivity Test checks 600.
The three routes side by side
| Your GP | Registered dietitian | At-home hair sensitivity test | |
|---|---|---|---|
| Best for | Ruling out coeliac disease, allergies and other medical causes | Working through an elimination diet with support | A starting shortlist of potential sensitivities |
| What it involves | Consultation, possibly blood tests and referrals | Food diary, elimination and reintroduction | A few strands of hair, posted to us |
| Items covered | Specific conditions your GP tests for | The foods you trial, one at a time | 600, 1,000 or 1,600 food and non-food items |
| Cost | Practice fee (often less if enrolled); Healthline is free | Private fee; extras cover may help | From NZ$58.95 |
What our tests cost in New Zealand
| Test | Items checked | 1 person | 2 people | 4 people |
|---|---|---|---|---|
| Individual Sensitivity Test | 600 | NZ$58.95 | n/a | n/a |
| Ultimate Individual Test | 1,000 | NZ$63.95 | NZ$99.95 | NZ$149.95 |
| Optimum Sensitivity Test | 1,600 | NZ$68.95 | NZ$119.95 | NZ$199.95 |
Prices shown are for New Zealand orders on 6 November 2026, in New Zealand dollars, with digital instructions. Your current price is on each test page. Every hair sensitivity test comes with our 30-day 100% money-back guarantee.
Testing the whole whānau? The Ultimate Individual Test and the Optimum test both come in 2- and 4-person versions, which work out cheaper per person. Not sure which level suits you? Our guide to comparing food sensitivity tests explains the differences.
A sensible order of steps
- See your GP to rule out anything that needs medical attention, including coeliac disease (keep eating gluten until you've been tested).
- Start a food and symptom diary straight away and keep it going for a few weeks.
- Take an at-home food intolerance test NZ if you'd like a shortlist of potential sensitivities to explore.
- Compare your results with your diary and look for items that appear in both.
- Trial changes one food at a time, ideally with a registered dietitian, so your diet stays balanced.
Common questions
How do I get a food intolerance test in New Zealand?
Start with your GP to rule out medical causes, keep a food and symptom diary, and consider a registered dietitian for an elimination diet. An at-home hair sensitivity test can give you a shortlist to explore alongside those steps.
Can a GP test for food intolerance in New Zealand?
A GP can check for conditions that look like intolerance, such as coeliac disease, and may refer you for allergy testing if you've had fast reactions. There isn't one GP test for everyday food intolerances, so most people combine a food diary with a dietitian, and many add an at-home test as a starting point.
Is a food intolerance test the same as an allergy test?
No. Allergy testing looks for the immune reactions linked to true allergies. Our hair sensitivity test doesn't use blood or measure antibodies; it looks for potential sensitivity patterns, so it's a starting point for exploring everyday symptoms rather than a way to check for an allergy.
How much is a food intolerance test in NZ?
Our at-home hair sensitivity tests are NZ$58.95 (600 items), NZ$63.95 (1,000 items) or NZ$68.95 (1,600 items) for one person. The Ultimate and Optimum tests also come in 2- and 4-person packs.
How long do results take?
Results arrive by email in 5–7 working days once your sample is received. Posting time from New Zealand is separate.
What it can't tell you
A hair sensitivity test can't tell you whether you have a true food allergy, coeliac disease or any other medical condition. If you suspect an allergy or coeliac disease, your GP is the right person to look into it. If you're weighing a hair sample against a blood panel, see hair vs blood food sensitivity tests.
About our tests
Our tests are At-home Hair Sensitivity Tests. Our testing team uses bioresonance to look for potential sensitivity patterns in a hair sample. They are a wellness screening and a starting point for exploration. They are not a medical test, they don't measure allergy antibodies, and they are not a replacement for advice from your GP, a pharmacist or a registered dietitian. Talk to your doctor before making big changes to your diet, especially for children, during pregnancy or if you have a medical condition. Every test comes with our 30-day money-back guarantee.
