Looking for a food intolerance test you can do at home?

Our at-home intolerance test checks hair for food and non-food sensitivities across up to 1,600 items. It does not measure immune antibodies (IgE) and is not a clinical allergy test — see your doctor for severe, immediate reactions. Results in 5–7 working days once your sample is received.

⭐️⭐️⭐️⭐️⭐️ nearly 7,000 five-star reviews across our brands

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Test Your Intolerance is now Test My Food Sensitivity: same tests, same team.

Test Your Intolerance logo
Test My Food Sensitivity test kits with fruits, vegetables, and nuts on a purple background

Test Your Intolerance is now Test My Food Sensitivity. Same trusted testing, same expert team — now with more foods, faster results, and a single home for all your sensitivity data.

About Test Your Intolerance

Test Your Intolerance has been helping customers across the UK and beyond understand their bodies since 2008, providing accessible, affordable at-home hair tests that identify the food and environmental triggers behind symptoms like bloating, fatigue, skin issues, and brain fog.

In 2025, we brought Test Your Intolerance together with Sensitivity Check, Test My Allergy, and Allergy Test under the Test My Food Sensitivity family. The reason is simple — our customers deserve one trusted home for all their testing needs, with a single account, a wider range of tests, and one expert customer service team supporting them throughout their health journey.

If you are a returning Test Your Intolerance customer, you are in exactly the right place. The same trusted testing process, the same commitment to your results, and the same team — now with even more tests and the backing of over 1 million customers helped worldwide.
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Explore our testing options

Featured tests

Box for 'Test My Food Sensitivity' Ultimate Sensitivity Test with branding and product details.

Ultimate Individual Test

£40.95 £32.76Feel Better Fortnight: 20% off applied automatically at basket – ends midnight Thu 19 Nov

Ultimate Individual Test

Evaluates 1000 potential food and environmental sensitivities using a hair sample

£40.95 £32.76Feel Better Fortnight: 20% off applied automatically at basket – ends midnight Thu 19 Nov
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Charlotte Burch

Months of discomfort and nothing seemed to help... I wish I had tried this sooner. It wasn’t just my regular diet; I found my body had a high reactivity to Turmeric, which was hiding in the daily wellness supplements and powders I took.

Cinnamon was another trigger I was using constantly. Since identifying and adjusting these items in my routine, the constant bloating and stomach cramps have finally cleared up.

Customers are saying

4.52 ★ (353)
Verified

Frequently Asked Questions
Is this the same as a clinical allergy test?

No. A clinical allergy test (IgE) is arranged by a doctor or allergy clinic and checks for immediate, potentially severe reactions. Our at-home intolerance test checks for delayed food and environmental sensitivities from a hair sample. It does not measure immune antibodies (IgE).
What does this intolerance test check?

It screens everyday foods and non-food items that may be linked to delayed symptoms such as bloating, tiredness, skin issues or headaches. It is not a clinical allergy test and is not for anaphylaxis or sudden severe swelling — contact a doctor or emergency service for those.
How long until I get results?

Results are ready in 5–7 working days once your sample is received.
Is this the same as an NHS allergy test?

No. NHS allergy tests (and private clinical allergy tests) test for immediate, IgE-mediated allergic reactions — the kind that cause anaphylaxis, hives, or severe swelling within minutes of exposure. Our food sensitivity test measures bioresonance responses to over 1,600 foods, which are associated with delayed, chronic symptoms like bloating, fatigue, skin issues, and headaches. The two tests serve completely different purposes.
How does the test work?

Samples are processed by our experienced testing team using an established bioresonance process and internal quality checks. Bioresonance looks at energetic frequencies from a hair sample to identify potential sensitivity patterns. It does not measure immune antibodies. Speak to your GP about any severe or sudden reactions. Over one million tests sold across our family of brands since 2008.
How long does it take to get my results?

Once your sample arrives with our testing team, results are typically ready within 5–7 days. You will receive an email notification when your results are available in your online account. Total time from ordering to results is usually 7–10 days depending on postage.
Can I use this test if I'm outside the UK?

Yes. While we do not ship our test kits internationally, we still sell our digital tests worldwide. With a digital test, you are sent information on how to submit your sample and will be asked to post your sample to our local hubs.

Why choose our tests?

Non-invasive testing

Our tests use non-invasive sensitivity (Bioresonance) testing, using a small hair sample to test for 1600 triggers.

Fast results

Your personalised report arrives by email, with results in 5–7 working days once your sample is received.

Cost effective

Rather than needing to spend up to £200+ for a traditional blood test, our sensitivity tests are significantly cheaper.

Stop the symptoms

After receiving your results you’ll know what triggers to avoid, and you'll be able to start changing your diet and lifestyle.
Woman holding a 'Ultimate Sensitivity Test' box outdoors with greenery in the background
Intolerances are the most common chronic illness in the world

Start your journey to better health with Test Your Intolerance

Food sensitivities can be the cause of a variety of health issues including headaches, irritable bowel syndrome and fatigue and even a variety of undiscovered symptoms. Our comprehensive sensitivity tests can quickly help you understand more about possible trigger items.

We have helped people with:

  • Bloating
  • Migraines
  • Headaches
  • Coughs
  • Eczema
  • Fatigue
  • Hives
  • Insomnia
  • Weight gain
  • IBS
  • Acid Reflux
  • Indigestion

And many more symptoms.

 Get tested today

What people are saying about Test Your Intolerance

We've had nearly 7,000 five-star reviews across our brands. See what some of them have to say.

 Read more reviews

A & R

We both swear by this test and have recommended it to many of our family and friends. The price is reasonable and totally worth it. Thank you!

Oct 2025

✔ Verified Purchase

Palladium

Instructions for collecting the samples are pretty clear, they keep you updated by email when they received them. Results are very detailed but easy to understand.

Nov 2025

✔ Verified Purchase

Varnika

The Food Intolerance Test Kit offers a simple and reliable way to identify potential sensitivities to over 1,600 foods and ingredients. It’s designed for adults who want to understand their body’s response to everyday foods suc...

Varnika

The Food Intolerance Test Kit offers a simple and reliable way to identify potential sensitivities to over 1,600 foods and ingredients. It’s designed for adults who want to understand their body’s response to everyday foods such as gluten, dairy, and lactose. The testing process is easy to follow, and results are delivered quickly with clear explanations. What sets this kit apart is the live support—experienced advisors help interpret your results and suggest next steps for dietary improvement. Ideal for anyone struggling with bloating, fatigue, or digestion issues, this kit provides valuable insights into your health. A convenient and science-backed solution to take control of your diet and well-being from home.

Nov 2025

✔ Verified Purchase

Özge Aydoğan

This test kit is really helpful! It was easy to use at home, and the results came quickly. Testing 1,600 different foods is a huge advantage. The live support made it simple to understand my results. I learned a lot about my gl...

Özge Aydoğan

This test kit is really helpful! It was easy to use at home, and the results came quickly. Testing 1,600 different foods is a huge advantage. The live support made it simple to understand my results. I learned a lot about my gluten and lactose intolerance and adjusted my diet accordingly. Highly recommended!

Nov 2025

✔ Verified Purchase

N. Hooper

I was a bit sceptical at first about completing an intolerance test, but as soon as I decided to try Test My Food Sensitivity, it was one of the best decisions I’ve made. I received my results very quickly and it was fascinatin...

N. Hooper

I was a bit sceptical at first about completing an intolerance test, but as soon as I decided to try Test My Food Sensitivity, it was one of the best decisions I’ve made. I received my results very quickly and it was fascinating and somewhat surprising to find out my intolerances. Since excluding all intolerances from my diet, it has been a shock and most of all, a relief to see how quickly my symptoms have been alleviated. For the first time in years I have been able to enjoy food without getting constant stomach pains and nausea, and it has felt empowering to regain control over my health. It can seem a bit daunting at first to transform your diet and cut out foods you’re so familiar with, but the nutritional support at Test My Food Sensitivity was super helpful and helped me clarify foods I can and can’t eat and if it is ok to reintroduce them into my diet at a later stage. It feels good to know I have this knowledge about my body forever and I can optimize my health as a result. Massive thumbs up and would encourage anyone to try it for yourself!

Jan 2026

✔ Verified Purchase

Amazon Customer

Easy test to take and return with clear instructions. The report that came back was far more detailed than expected and highlighted some areas that I had not realised. It was good value for money in my view.

Oct 2025

✔ Verified Purchase

Colleen W.

I was so happy and impressed with my test results that my husband requested I do the test for him! The results have helped us take control over our health and wellbeing and the benefits are already noticeable.

Sep 2025

✔ Verified Purchase

Kyekye

Amazing , got for my oldest boy due to unknown allergies and now doing same for my youngest child , easy to use , really simple instructions and amazing results , not bad price and super quick delivery

Nov 2025

✔ Verified Purchase

CC

I have contemplated using a food intolerance kit for sometime but was unsure where to start or how to do this. This kit comes with clear instructions and easily followed. Such a good range of foods are tested to for the price! ...

CC

I have contemplated using a food intolerance kit for sometime but was unsure where to start or how to do this. This kit comes with clear instructions and easily followed. Such a good range of foods are tested to for the price! I am pleased I bought it.

Nov 2025

✔ Verified Purchase

RK

A convenient first step to identify food sensitivities from home. I ordered it for my sister, who has many food allergies. Just be sure to discuss the results with your doctor for a clear action plan. Great little kit!

Nov 2025

✔ Verified Purchase

About Test My Food Sensitivity

What makes us different from other sensitivity test providers

Trusted since 2008

Our team has been at the forefront of at-home hair-based sensitivity testing since 2008, starting with Test Your Intolerance and Sensitivity Check in the UK, and expanding globally under brands like Allergy Test.

Money-back guarantee

We believe in honesty and transparency, which is why we offer a 30-day 100% money-back guarantee on hair sensitivity tests. Discover potential food and environmental sensitivities with confidence.

Global company

We've served customers in over 50 countries worldwide through our family of brands, delivering sensitivity tests to diverse markets.

Over one million tests sold

Over one million tests sold across our family of brands since 2008, so you’re in experienced hands.
Choose Your Test

Who we are

Test Your Intolerance was born in 2008 in Ashby de la Zouch, UK, with a simple aim: offer quality intolerance tests at affordable prices.

Our growth has been phenomenal. As demand grew across the globe, we became the first company in our industry to offer a 100% money-back guarantee.

Over the years we've launched specialist brands including Allergy Test and the million+ selling Sensitivity Check to serve different markets.

In 2025, we brought everything under one banner - but we're still the same great business providing quality, trusted tests at affordable prices, backed by our 100% money-back guarantee.

 More about us
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Part of the Test My Food Sensitivity family

Our dedicated customer support team is here to help.

If you have any questions about your test, or simply not sure what test to choose, our team is happy to help. You can get in touch with them here.

How It Works

Beat delayed food sensitivities in three simple stages with our at-home intolerance test. It does not measure immune antibodies (IgE) and is not a clinical allergy test.

We’ll email you as soon as your hair sample arrives. Our testing team then gets to work, with results in 5–7 working days once your sample is received, sent straight to your inbox.

Step 1

Choose your test and place your order securely online.

Step 2

Step 2 - Complete the online submission and send your sample to our facilities.

Step 2

Step 3 - Results in 5–7 working days once your sample is received, straight to your email.

30-day 100% money-back guarantee on hair sensitivity tests

Satisfaction Guarantee

At Test My Food Sensitivity, we believe in honesty and transparency which is why we’re excited and super-proud of our satisfaction guarantee.

Furthermore, we’re so proud of our test, service and team that every hair sensitivity test is covered by our 30-day 100% money-back guarantee, so you can discover potential food and environmental sensitivities with confidence.

We have a customer service team working to answer your queries so that you can be assured that you’re in the best hands with Test My Food Sensitivity.

You can read more about our Satisfaction Guarantee in our Returns & Refunds Policy.
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Still unsure?

We're happy to answer any questions you might have about our tests and testing process. You can speak with our customer service here.

 Order your test now
What is included in the test?

Your purchase includes a full digital sensitivity report and general wellness guidance based on a small hair sample you send to us.
How does the hair testing process work?

You send us a small hair sample.

We analyse it using non-medical bioresonance technology to identify potential energetic responses to a wide range of foods and environmental items.
How do I send my hair sample?

After purchase, you’ll receive instructions by email.

You simply cut a small sample and mail it to the address provided.

Hear from more happy customers

Join thousands of satisfied customers who've given us nearly 7,000 five-star reviews across our brands.
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Naomi

Bloated stomach

— Really insightful and interesting. I have learned a lot and cut certain things down or out of my diet and already feel less bloated!

Man in a forest holding an Optimum Sensitivity Test package

Jon B.

Eczema, skin conditions

— Since leaving several things out of my diet my skin has improved a lot.

Woman holding a 'Ultimate Sensitivity Test' box outdoors with greenery in the background

Sandra M.

Bloated stomach

— I always have no energy and I always feel ill now I know but this could be the reason why I would never have known if I didn’t use test your intolerance thank you so much.

Read more testimonials