Health & food Testing

Here at Keira Louisa Nutrition i offer a range of tests to help clients take charge of their own health, and to support changes within a clients diet and lifestyle, to help individuals thrive at optimum health levels.


All tests are sent to Lorisian healthcare laboratories (part of York Test Laboratories) who are governed by the MHRA (Medicines Healthcare Regulatory Agency), and abide by the the International Organisation of Standardisation.


As an approved supplier for Lorisian tests i offer the following tests.

Gold Lorisian Food intolerance test - The gold Lorisian Food intolerance test analyses your igG antibody reactions to 208 food and drink ingredients.

The Lorisian Gold is a comprehensive food and drink test. The test analyses the client’s IgG antibody reactions to 208 food and drink ingredients. The results of this test will highlight clients individual food triggers, which can help to support and formulate an IgG-guided elimination diet.

The test is simple to take and can be done with or without a practitioner’s supervision. All that is needed is small blood sample, which is obtained with a simple prick of the finger. We will then analyse IgG antibody reactions in the blood, when it is exposed to 208 food and drink ingredients. A step by step guide on how to take the test is included within your kit.

The Lorisian laboratory is in house and state of the art. The experienced and qualified team, led by Scientific Director Dr Gill Hart, are proud of the high level of reproducibility which currently stands at >98%. This means that the results of two tests analysed at the same time with the same blood sample will match >98% of the time

            Gold Lorisian Test - £199                                   Gold Lorisian Test with 40 minute consultation call - £230

Allergy Check - The Allergy check tests for 20 different food ingredients, and 18 environmental allergens to identify high moderate and low allergic reactions using IGE antibody reactions.

          Allergy Check Test - £199                                     Allergy Check Test with 40 minute consultation - £230

Essential Health Check - The Essential health check test measures Vitamin D, Vitamin B12, Folate, Iron deficiency, Cholesterol and Triglycerides, and liver function levels in your blood. These results provide essential information about your health that you can act upon.

      Essential Health check - £99                                Essential Health check with 40 minute consultation  - £129

All Lorisian tests are simple to take and can be done with or without a practitioner’s supervision.

All that is needed is small blood sample, which is obtained with a simple prick of the finger

Once you have taken the test, you send your sample to the Lorisian Laboratory.

Result times are varied dependent on the test 

What is the difference between allergy and intolerance

A food intolerance can occur when the body has difficulty digesting certain foods. When this occurs over time, large food particles (proteins) may enter the blood stream and this can cause inflammation.

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 by attacking them using antibodies called Immunoglobulin G’s (IgG).

A food-specific IgG reaction should not be confused with food allergies, nor other types of food intolerances, which Lorisian do not test for. These include:

  • Enzyme deficiencies e.g. lactose (milk sugar) intolerance

  • Coeliac disease; requiring lifelong avoidance of gluten

  • Chemical sensitivities e.g. histamine, tyramine, sulphites etc

Food intolerance can cause a wide range of disruptive symptoms such as digestive problems, eczema, migraines and headaches, fatigue, depression and low mood, joint pains and sinusitis.

It is always recommended that any concerns are discussed with a doctor first, before taking a food intolerance test. This is to fully investigate the potential causes which may include investigations for coeliac disease and/or lactose intolerance and provide the medical follow up required. It is a fact of life, however, that in many cases there is no medical explanation for symptoms such as these.

For example, medically unexplained symptoms or ‘functional symptoms’ where doctors can’t find a problem with the body that might be the cause, account for up to a fifth of all GP consultations in the UK¹.  These include symptoms such as tiredness, chronic fatigue (ME), depression, anxiety, IBS, fibromyalgia, headaches and migraines, skin rashes and joint pains, runny nose and sinusitis.

Many people with these problems will be given the all clear by their doctor and strongly suspect that food is the root cause of their problems. So what options do they have?

  • Do nothing

  • Choose to remove foods from their diet by second guessing

  • Seek support from a dietitian or nutritional therapist and try an elimination diet and challenge method; a method which can be long and laborious (it is difficult to determine the exact combination of relevant trigger foods using this method)

  • Take a food intolerance test to identify their food triggers and fast-track their elimination diet

 Which Laboratory do i use for food intolerance testing and why?

Lorisian have been awarded Food Intolerance Testing Company of the Year 2019 and Recognised Experts in Dietary Research & Solutions 2019 and as the UK’s leading provider of diagnostic testing services look to aid client’s to better their health through preventative measures. 

Lorisian are a fully accredited laboratory upholding a 98% reproducibility rate and look to support practitioners with their clients’ needs through simple finger prick testing. All of which provides results within 10 working days in a simple and actionable format to provide a baseline of information to better health and well-being