Find out which foods you should not be eating   

Find Out Which Foods
Book Your Food
Reaction Test

700+ items tested for only £49 & results back in 3 days.

The solution is here…

Order our full food and non food reaction testing package.

Send us a few strands of your hair.

We will then analyze it against over 700 known food and non-food problems in our database. 

See what more satisfied customers say about Intolerance Lab and our intolerance test…

I got a Platinum intolerance test and I’m happy within results I received. Great and really quick service. Simple and Easy to read. Great experience. Would recommend. Thank you
Miss Liliana Lazuta
Easy to send in your hair sample and a reply with results very quickly. The test has confirmed what I suspected about some of the ordinary food I ate. I now know what to avoid and feel much better for it!
Bet Davies
A very straight forward process and cost effective compared to their competition, driven by the type of test (hair test not blood). Results within two days of sending sample, results were clear and understandable.
Peter Denton

Really impressed with these guys, efficient and friendly service, and got my results back just as they stated. Would definitely recommend them!

James Stallard
Very easy test, extremely quick results. Very pleased with results and will try to eliminate and see what difference it makes.
Time will tell if the results prove to be helpful, it was an avenue I wished to explore. I was happy with the overall service, the results coming through in just a few days. The staff were helpful and my emails were replied to directly.

Without a Food Reaction Test You Might NEVER Know The Truth

If your body reacts badly to certain foods, we will find it and pinpoint it so you can avoid it in the future. 

It’s as simple as that.

Some minor problems can be associated with eating the wrong foods for your body.

Find out what they are and then avoid them 

Still not sure if our thorough testing process will work for you?
Well, you don’t have to take our word for how successful our full testing service is.​

Here’s what some of our very satisfied customers are saying about Intolerance Lab:

Our 100%, No Quibble, Full Money-Back Guarantee!


You will be delighted with our service, our testing and our after-sale support.

If after six weeks you’re not satisfied with the results of our tests, or anything else, then contact us and let us know.

We’ll give you a refund with no questions asked.

That’s how confident we are that you WILL be more than happy with our tolerance testing package.

* Terms and conditions apply

Its as easy as one , two, three …

Book our food reaction test to find out if you have any problem foods in your diet. Receive detailed instructions on how to take your hair sample properly
and where to send it.

Post your hair sample to our experts at the lab and wait 5 to 7 days for your results.

Receive your list of foods that have a bad reaction in our testing , and which are most likely to be problem foods for you!

Trusted By Professional Athletes

We don’t only work with members of the public.

We are the “go to” guys for many professional sports teams, gyms, and athletes.

We work with people who are crazy about their health and fitness.

We are also endorsed by some of the biggest household names in the industry.

People who don’t have problems but want to get to the peak of their fitness goals.


6 Ways We Deliver...

Time Frame

Price of Full Test

Foods Tested

Qualified Nutritionists


Do They Offer Basic Test


3 – 5 days




10 days



Test My

7 days



Test Your

10 days




Time Frame  — 3 – 5 days

Price of Full Test — £47

Foods Tested  — 350+

Qualified Nutritionists


Do They Offer Basic Test


Time Frame  — 10 days

Price of Full Test — £244

Foods Tested  — 158

Qualified Nutritionists


Do They Offer Basic Test


Time Frame  — 7 days

Price of Full Test — £60

Foods Tested  — 300

Qualified Nutritionists


Do They Offer Basic Test


Time Frame  — 10 days

Price of Full Test — £54

Foods Tested  — 300

Qualified Nutritionists


Do They Offer Basic Test

Check out the lists below to see what we test for …

State-of-The-Art Technology

We use state-of-the-art American imported biotechnology equipment.

Our full testing package will analyze your sample against over 350 foods and 350 non-foods.

You’ll be given a list of the foods which score over 85% positive on our food reaction test.

All you have to do is send us a few strands of your hair (about 9 or 10 is enough)


Allergy and intolerance are often confused, or thought of as similar conditions, when in reality they are very different. Allergy is an immediate, sometimes dangerous or life-threatening reaction to a food or drink. This is often present from a young age and always involves the antibody type IgE. Intolerance can be developed later in life and takes longer for symptoms to present themselves, making it more difficult to pinpoint the culprit food(s). Testing can be beneficial to discover the trigger foods and drinks quicker. With suspected food allergy, always seek profesional medical help.
Some Health Insurance Providers will cover the costs. Contact your provider for more info.
We test for over 350 types of food, including wheat, eggs, nuts, etc. We also test for over 350 non-food items, like pet hair pollen and detergents. If you need a full list, get in touch and we can get you one.
We dont test anybody under the age of six.
Optimum nutrition during pregnancy and breastfeeding is vital for mother and child. To reduce any possible risk to the mother or baby, it’s Intolerance Lab’s protocol not to offer tests, advice or lifestyle changes during pregnancy and/or breastfeeding.
The tests are as painful as plucking a hair from your body..
Your hair does not have to come from your head. It can come from your leg, arm, or even chest.
This will not have any effect on the results.
No. Our tests examine your hair at the cellular level, so there’s no need for you to have been eating your trigger foods recently. They will still be found by our testing equipment.
These two tests are very different in what is tested, the process and the results. A blood test checks for IgE-mediated allergies and will only produce results listing reactions in the immunoglobulin system (these are estimated at only 2% of all allergies). Our hair sample test examines changes at the cellular level because the latest science shows that up to 43% of allergies are in fact a reaction in T cells. The two tests measure totally different reactions and will produce totally different results.
We only offer hair sampling here at Intolerance Lab. Currently, the main way to identify the two types of allergies (IgE and Non-IgE) is on the reaction time from consuming or being in contact with the item. If you notice a reaction that is almost instant or within two hours (max), you would normally consult with your GP and he or she might consider a blood test. These are normally essential for more serious allergies—which, fortunately, only account for 2% of all allergies. If your reaction time is slower or you are unable to identify the link between your symptoms then it is more than likely you have a non IgE mediated allergy. In this instance, we would recommend our hair based non IgE mediated allergy test.

Get My Food Reaction Test Underway!

Don’t delay… and don’t waste another precious moment of your life.

Silver = Top 100 food item starter test
£37.00   £50.00
Gold = 350 Foods and 350 Non Foods
£47.00   £55.00
Family Testing Service (4x Full Tests)
£125.00   £150.00

Get More Intolerance Test