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Symptoms associated with IgG food intolerances include bloating, weight gain, finding it hard to lose weight, oedema, IBS, irritable bowel syndrome, diarrhoea, constipation, gastro-intestinal problems, Crohns, diverticulitis, colitis, low immunity, easy bruising, anxiety, exhaustion, burnout, sluggishness, Chronic Fatigue Syndrome, M.E, tiredness after eating, fatigue in the afternoon, lack of concentration, poor memory, feeling ‘blue’, depression, dark circles under the eyes, cravings, sugar addiction, cold sores, mood swings, frequent urination, stomach pain, acid reflux, indigestion, asthma, sinus problems, mucous, itchy skin, rashes, eczema, psoriasis, spots, prostate problems, poor circulation, arthritis, joint pain, muscle pain, fibromyalgia, hayfever, headaches, migraines and behavioural problems or ADHD.

Online Nutritionist London

We have offered laboratory tested Food Intolerance Tests, for over 20 years. Utilising state of the art immunoassay microarray technology, you can choose from a variety of Food Intolerance Tests which detect food-specific IgG antibodies to an array of foods including vegetarian & vegan foods. 


These Food Intolerance Tests are based on a quick and easy pinprick blood sample which can be taken in the comfort of your own home. Once you have ordered your Food Intolerance Test and received your sample collection pack, you can simply watch the video on how to do the Food Intolerance Test and follow the instructions - there is also a Procedure Card to help you. Once you have completed the steps, just send your sample back to the laboratory for testing in the pre-paid return envelope provided.


Make sure that you read the 'Important Notes' before ordering your Food Intolerance Test (see the bottom of this page).

What is IgG Food Intolerance Testing?


Food based antigens cause the immune system to produce an antibody that specifically reacts with it. IgG-mediated reactions to food antigens are known as food intolerances or food sensitivities and may be delayed by several hours or days and cause an inflammatory response. On the other hand, IgE food antibody reactions are quite immediate, produce a histamine response and are known as food allergies. Immunoglobulin G (IgG) testing for food intolerances is a useful guide for people with many conditions as seen above.

Foods included in the Food Intolerance Tests 

Ensure that you give the 'Healthcare Professional' name as 'Hilary Kingston' 


Read the 'Important Notes' Below Before Ordering Your Food Intolerance Test

IgG Indicator Test

A positive IgG Indicator Test result shows that a more detailed Food Intolerance test is advised. 


200+ Food Intolerance Test

This 200+ Food Intolerance Test to detect food-specific IgG antibodies to 220 different foods.


40+ Food Intolerance Test

This 40+ Food Intolerance Test to detect food-specific IgG antibodies to 44 different foods.


160+ Vegetarian

This 160+ Vegetarian Food Intolerance Test detects non meat food-specific IgG antibodies.


120+ Food Intolerance Test

This 120+ Food Intolerance Test to detect food-specific IgG antibodies to 125 different foods.


150+ Vegan

This 150+ Vegan Food Intolerance Test detects vegan food-specific IgG antibodies.


Important Notes Before Ordering:


  • Once you have clicked ORDER HERE, you will go through to the CNS laboratory website to place your order. Please ensure that you name Hilary Kingston as your Healthcare Professional, so that the laboratory can process your Food Intolerance Test.

  • Ensure that you remember to request your Food Intolerance Test sample collection pack.

  • Avoid all prebiotics and probiotics, natural live yoghurt, kefir or any other live bacteria food or supplement for 2 weeks prior to taking the Food Intolerance Test. Ensure that you wait 2 weeks after having antibiotics or antifungals before taking this test.

You may wish to book a Nutritionist Consultation with Hilary Kingston, top UK Nutritionist, once you have the results of your Food Intolerance Test. The online Nutrition Consultation will go through any underlying factors that may be impacting you and therefore contributing to your food intolerances. 


Each person is different and this is a personalised inventory to help you start to look at rebalancing your body. Certain foods from your food intolerance test will also be substituted and other foods increased into your diet and this will help to give you direction as you start along this path of helping your health and wellbeing.


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