Food Intolerance Testing

Colonic Healthcare are able to offer Food Intolerance Testing working in conjunction with leading laboratory Lorisian. Tests are available to identify up-to 200+ food types and can uncover a range of intolerances which could be affecting your health, well-being and daily life.

Your initial appointment will consist of a small finger prick to allow a small sample of blood to be taken, this is then sent to the laboratory for analysis with results returned in around 10 days. A follow up appointment is made to discuss the results and to provide you with the support to implement any changes required to your diet.

Click on the tests below to view the ingredients sampled for:

                                       £199                               £299

What is a Food Intolerance?

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. Up to 45% of the population suffer from food intolerance* which, whilst not life threatening, can have a negative impact on many aspects of daily life.


When foods and drinks are digested, the proteins within them are broken down into smaller fragments for easy absorption into the body. Larger fragments can pass through without breaking down, and sometimes the body reacts to them as invaders, attacking them using antibodies called Immunoglobuling (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, to name a few. *According to the leading medical charity Allergy UK

Symptoms of Food Intolerance

Food intolerance is a condition with a range of symptoms including gut discomfort, bloating, migraines, low mood, fatigue and skin problems.

On average people who suffer from food intolerances usually have between 4 and 6 trigger foods. Symptoms of food intolerance can take up to 72 hours to appear after eating the trigger food, or group of foods. Many people suffer for years,being unable to enjoy a normal work and home life,unable to lose weight and unable to lead a healthy and energetic lifestyle. Many don’t know that there are easy steps to take to resolve their condition.

Do you recognise the symptoms of food intolerance?


Frequently Asked Questions

1  What is the difference between food intolerance and food allergy?

Up to 45% of the population suffer from food intolerance which, whilst not life threatening can cause many different symptoms. Digested foods are usually broken down into smaller fragments for easy absorption in the body. Sometimes larger fragments can pass through into the blood stream, causing the body to react to them as invaders, attacking them using antibodies called immunoglobulin G (IgG). IgG antibodies to foods are linked to inflammation in the body. Symptoms can be slow to develop and can take hours or days to appear. Food intolerance can be reversible. Food allergy is very different; it produces reactions very quickly and can be life-threatening. Food allergies are life-long.


2  My doctor has carried out an allergy test,why don’t the results correspond to the results of Lorisian?

The Lorisian test measures the delayed food intolerance reactions in the form of IgG antibodies. Allergy tests measure the rapid reactions caused by raised IgE antibodies. Therefore the results do not correspond.


3  What are the most common allergens?

Everyone’s “fingerprint” of reactive IgG foods is different and so it is not possible to generalise. The exact food types will be unique to each individual.

4  Why can’t the Lorisian test be used to test children under the age of 2?

The immune system is not fully developed under the age of 2. Changes in diet at that age must be supervised as they may leave the child deficient of nutrients. Lorisian can accept samples from children under 2 if they have a referral from a Medical Practitioner.

5  Why can’t women take the Lorisian test if they are pregnant or breastfeeding?

Optimum nutrition during pregnancy and breastfeeding is vital for mother and child. To reduce any possible risk to the mother or baby, it is Lorisian protocol not to offer tests or treatments during pregnancy and breastfeeding. In addition the test has not been validated in pregnancy. 

6  Can the food-specific IgG test be taken if someone is taking Anti-histamines?

Anti-histamines do not affect IgG antibody production and so the answer is yes.

7  How long should foods be eliminated for?

This depends on the severity of symptoms. Normally foods would be eliminated for around 3-6 months; with a particularly bad reaction this may be for longer and some people have to eliminate their problem foods for many years. The vital thing to consider when reintroducing foods that have been excluded from the diet for any significant amount of time is that foods should be reintroduced carefully and in a planned manner. 


8  The test shows reactions to foods that have not been eaten. How is this possible?

Some types of proteins are present in more than one food type. In addition many foods contain “hidden” ingredients that may be eaten without realising it.

9  The Lorisian test is carried out in a laboratory. What accreditations does the laboratory have?

Lorisian has ISO 9001 and ISO 13485 accredited.The laboratory tests and products meet all the requirements of the European Medical Device and InVitro Diagnostic Device Directives.


10  Can those positive to cow's milk use lactose free milk?

No, the lactose is not the problem it is the proteins that are present in cow’s milk that cause the intolerance, these are still present in lactose free milk. Alternatives such as soya, coconut, almond, hazelnut, rice, or oat milk should be used.


11  Can those positive to cow's milk use goat's or sheep’s milk?

It is possible to react to the proteins in cow's milk and not those found in goat's or sheep’s milks. The Lorisian 150plus test includes these three ingredients to help give a fuller understanding of reactions to animal milks and help make appropriate dietary changes.


12  Can those intolerant to hen’s eggs eat duck, quail or goose eggs?

It is probably best to avoid all eggs.


13  Is gluten-free the same as wheat-free?

A product can be wheat-free and not gluten-free. A product can be gluten-free and not wheat-free. There are however, products which are both gluten-free and wheat-free. We advise clients to read labels carefully

  • Abdominal Pain

  • Aches and Pains

  • Acne

  • Bloating

  • Constipation

  • Chronic Fatigue Syndrome

  • Diarrhoea

  • Dizziness

  • Eczema

  • Fatigue

  • Irritable Bowel Syndrome

  • Itching

  • Fluid Retention

  • Headaches

  • Hyperactivity

  • Migraine

  • Nausea

  • Rashes

  • Rhinitis

  • Sinusitis

  • Stomach Cramps