Food Intolerance Testing

Did you know that 45% of people suffer symptoms of food intolerance?

Did you also know that 3 out of 4 people tested reported feeling benefit within 3 weeks of dietary change?

Source: Lorisian Healthcare Laboratory Services

As a Certified Lorisian Practitioner for Food Intolerance Testing, I am very pleased to be able to offer my Cients the opportunity to be tested for food intolerances if they wish, or I may suggest testing for some Clients if I feel that it would be of benefit in view of the symptoms they are experiencing.  

I have helped, guided and supported many Clients throughout the process of testing and making the necessary dietary changes, all of whom have experienced improvements to their health and general wellbeing upon following the recommendations laid out by the test and the dietary guidance I have given them. 

I am in close contact with the health Professionals at Lorisian and attend training sessions on a regular basis to ensure that I am fully up to date with the latest dietary protocols.

Many Nutritional Practitioners offer intolerance testing, but not all of them have undertaken the necessary training in order to ensure that Patients will be able to comply with the dietary changes or that nutritional deficiencies will be avoided upon the possible elimination of whole food groups. 

It is here that I have found my experience to be invaluable in dealing with any difficulties that Clients may have, and supporting them through what can sometimes be a daunting and challenging experience. 

I have seen improvements in Clients with many different health Conditions and the positive changes I have been privelleged to see gives me full confidence and enthusiasm to guide them through the whole process and support them every step of the way.

Please note that it is very important that you always see your GP beforehand in order to rule out any other possible diagnosis for your symptoms.

What are Food Intolerances?

There is a lot of confusion about the terms food intolerance and food allergy, and the differences between them.  Many people think they have a food allergy when their symptoms can sometimes indicate food intolerance instead.  

When food and drinks are digested, the proteins within them are broken down into smaller fragments for easy absorption into the body.

In some people, due to many different factors, larger fragments can pass through the intestine into the bloodstream without breaking down, and sometimes the body reacts to them as invaders, attacking them using antibodies called immunoglobulin (IgG)

This can cause inflammation and a wide range of symptoms including headaches, digestive problems, IBS, bloating, itchy skin, joint pain, weight gain and low mood (see below for a wider list of Conditions which can be helped through food intolerance testing).

Professional rugby player Rob Vickerman took the Lorisian 150plus to help find out what was causing his digestive discomfort, low energy and other health problems which included migraines.

Read about Rob's story here

Olympian and World record holder Paula Radcliffe suffered from stomach cramps and fatigue which were affecting her performance.

Read about Paula's story here

Food Allergy

Genuine food allergy is relatively rare.  Only about 2% of the adult population are affected.  A food allergy is a swift response by the body’s immune system to a specific food.  

In this type of reaction, the body’s immune system mistakes a food for an ‘invader’ which often results in a rapid allergic reaction, usually within minutes, but generally within a maximum of two hours.  This type of allergic reaction is commonly associated reactions to peanuts, tree nuts, milk, eggs and seafood.

Food intolerance is quite different to food allergy and whilst the symptoms can impact the person’s quality of life they are not life threatening.  Food intolerances are much more common than food allergies.

Why not just try cutting foods out?

Nutritional Therapists sometimes use a 'rotation diet’ in order to identify problem foods which involves cutting out specific foods for a period of time, and then re-introducing them and seeing if they cause a reaction.  But this is not always practical. 

Not only does it involve eating a very restricted diet without knowing if it is going to help or not, there is also the problem of a delayed reaction.  Symptoms of food intolerance can take up to 72 hours to appear after eating the trigger food or group of foods. 

On average people who suffer from food intolerances usually have between 4 and 8 trigger foods, making it extremely difficult to connect the symptoms to the food eaten two or three days before.

I have found that Clients prefer to have the test results confirmed before eliminating certain foods as they can then proceed with the certainty that they are targeting the correct 'problem foods'.

Who Carries out the Tests?

I use Lorisian, (Yorktest Laboratories Ltd.) who have over 30 years’ experience and specialise in laboratory tests that measure food triggers (food-specific IgG antibodies)

These tests are hospital-standard laboratory tests. The test consists of a simple finger pin prick and can be done at home. 

Lorisian’s food-specific IgG testing method has had more scientific papers published about its performance than any other food intolerance test on the market.  There are many tests and programmes that do not have any published data available to show how they perform.

The Food Intolerance Test is aimed at those who want to optimise their diets by avoiding any foods that they are reacting to for around 3-6 months after which time, foods can be gradually re-introduced whilst monitoring any reactions or symptoms. 

The test can be particularly effective for weight loss.  I have seen many Clients lose the weight which they had been previously unable to lose by following recommendations from the food intolerance test. 

Please see Katie's story below which shows how she overcame her bloating and weight gain after completing a Lorisian 150plus test:

Katie's Story

How many foods can be tested for?

There are 4 testing options available with igG antibody reaction to 50, 75, 100 or 150plus different food ingredients. 

What do I offer my Clients?

I offer a full support package which is tailored to your results, including further information on problem foods and advice on how to make the necessary changes to your diet. 

Clients receive a colour-coded print out of their results, a support pack from Lorisian with further helpful suggestions and tips including a food diary which can help them monitor their progress over the weeks and see how their symptoms have improved.

I provide factsheets and recipe suggestions (if required) as part of the follow-up Consultation and comprehensive and ongoing support throughout the sometimes difficult transition period where the problem food is eliminated from the diet. 

Having followed a gluten-free diet myself, I am very aware of the challenges that this can involve and can offer lots of practical help and advice.

Despite the challenges of having to make some lifestyle changes, I have found that all my Clients are glad that they have persevered as they begin to feel better and more energised.

My Clients are constantly amazed at the difference that a few changes to their diets can make to their symptoms, health and wellbeing.

Laura finally found an answer to improve her eczema, bloating and fatigue.

Laura's story

Possible symptoms of food intolerance*

*Please note: These symptoms must always be checked out by a Medical Professional. If you have seen a Medical Professional but have not been given a diagnosis for your symptoms, then you may be suffering from food intolerance.  

Lorisian recommend that any worrying symptoms are followed up by a GP to rule out any serious conditions before using the test and starting the elimination diet.


•    Abdominal Pain
•    Aches and Pains
•    Acne
•    Bloating
•    Constipation
•    Chronic Fatigue Syndrome
•    Diarrhoea
•    Dizziness
•    Eczema
•    Fatigue
•    Irritable Bowel Syndrome (IBS)
•    Itching
•    Fluid Retention
•    Headaches
•    Hyperactivity
•    Migraine
•    Nausea
•    Rashes
•    Rhinitis
•    Sinusitis
•    Stomach Cramps
•    Tension
•    Tiredness
•    Urticaria (nettle rash)
•    Weight loss/Weight Gain
•    Wheezing

Please note that the test cannot be taken if:

  • Suffering from blood borne diseases such as Hepatitis or HIV
  • Under the age of 2
  • Pregnant or breast feeding
  • Taking steroids or immunosuppressants

Source: Lorisian Healthcare Laboratory Testing Services