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Food Intolerance Testing

Do you suffer with IBS, bloating, constipation, diarrhoea, flatulence, stomach cramps, lethargy, headaches, migraines or nausea? Do your symptoms worsen after consuming certain foods? Do you long for answers to your symptoms? Then this is for you! Congratulations on taking the first step towards a new healthy you.

Food allergy. Food can cause food allergy in baby and toddler. The key common food allergy

What is Food Sensitivity?

Food sensitivity results when your body reacts negatively to particular foods. Often the foods we eat regularly or the foods we crave are the ones causing us problems! Research has shown that food sensitivity can be linked to IgG antibodies produced when these problematic foods are eaten. Normally these antibodies do not have any ill-effects, but if the immune or digestive system are not functioning optimally, their presence may provoke a wide array of symptoms.

Why Test for IgG Food Antibodies and Food Sensitivity?

As it can take up to 72 hours to notice symptoms triggered by food sensitivities, culprit foods can be hard to detect using elimination diets. A food sensitivity test is therefore a helpful tool to remove the guesswork. Testing IgG responses to specific foods may help to identify problematic foods, which can then be removed or rotated in the diet for a specific period of time. This should result in a reduction of symptoms. The test works by measuring blood levels of IgG antibodies. IgG antibody formation is triggered in response to contact with specific food proteins (antigens) to which they bind together and form an immune complex. These complexes may be deposited in tissues and when formed in excess and faster than the immune system’s ability to remove them efficiently, inflammation and the development of associated symptoms may be triggered. The symptoms will depend on where in the body the complexes are deposited.


From the results of a food sensitivity test, an IgG dietary elimination programme can be designed. Removing problematic foods allows for the breakdown and elimination of existing complexes and limits the formation of new complexes to a manageable level of tolerance. Support to gut wall integrity may further improve tolerance as testing positive to a high number of foods could indicate increased intestinal permeability or “leaky gut”. The gut provides an internal barrier to the external environment and is highly selective of nutrients and pathogens absorbed into the body. If compromised, resulting permeability allows food molecules to cross into the bloodstream before they are adequately digested, potentially provoking an IgG immune mediated response. Factors contributing to a leaky gut include poor dietary choices, recreational drug use, smoking, excessive exercise, medications and stress, all of which can result in imbalance and gut dysbiosis.


To help gain the most from a food sensitivity test, particularly with a high number of elevated foods, it is important to focus on supporting the digestive system whilst following an elimination diet. Once symptoms have subsided, continued support to gut integrity may help to improve tolerance to these foods. Problematic foods may then be reintroduced as part of a healthy, balanced diet and tolerated at a reduced intake. It is important to recognise that not all food-related symptoms are caused by an IgG response; inadequate digestion, microbiome dysbiosis, candidiasis, parasites, intestinal infections, a poorly balanced diet, excessive exercise, alcohol consumption and the effects of drugs and medications may all contribute to symptoms.

Hands on Stomach

IgG Food Sensitivity and IgE Food Allergy

IgG food sensitivity reactions are known as Type III allergic reactions, not to be confused with type I IgE allergic reactions. In type I allergic reactions, IgE antibody production is stimulated by the detection of potentially harmful proteins or antigens by our innate immune system. Response is of immediate onset and may be accompanied by potentially life-threatening symptoms. A type I allergic reaction will not show up in a food sensitivity test and an individual should therefore continue to avoid any food to which they have known allergies, regardless of their IgG food sensitivity test results. In contrast, IgG antibody reactions form part of our acquired immune response which is slower forming with delayed onset of symptoms by up to 72 hours.

Symptoms of Food Intolerances

  • Bloating

  • Constipation

  • Diarrhoea

  • Flatulence

  • Headaches

  • Migraines

  • Lethargy

  • Fatigue

  • Nausea

  • Vomiting

  • Stomach cramps

  • Abdominal pain

  • Irritable bowel syndrome

Hugging a Pillow

What We Offer


In Person Testing:
60+ Food Panel

Testing takes up to 45 minutes and includes a finger-prick to draw blood.


Results are instant. Clients are sent basic dietary plans and information packs.


Sessions cost £130.


In Person Testing:
60+ Food Panel Plus Nutritional Therapy Consultation

 Food intolerance testing is incorporated into an initial or follow-up nutritional consultation for additional prices. Food intolerance results are given instantly.


Clients are given personalised nutritional plans and optimal support. Initial sessions take 3 hours or follow-up sessions take 1 hour 30 minutes.


Initial sessions cost £360 and follow-up sessions cost £180.


In Person Testing:
60+ Food Panel Plus Naturopathic Consultation

 Food intolerance testing is incorporated into an initial or follow-up naturopathic consultation. Food intolerance results are given instantly.


Clients are given personalised naturopathic plans and holistic advice following the session. This is advisable for clients with multiple symptoms and poor gut health.


Initial sessions take 3 hours and follow-up sessions take 1 hour 30 minutes.


Initial sessions cost £400 and follow-up sessions cost £200.


In Person Testing:
200+ Food Panel and Inflammatory Marker hs-CRP

 Testing takes 15-20 minutes and requires a finger-prick to draw blood.


Results take around 10 days-2 weeks and are more accurate than the 60+ food panel results.


Clients are sent basic nutritional plans and information packs.


Sessions cost £320.


In Person Testing: 200+ Food Panel + hs-CRP + Nutritional Therapy Consultation

Testing is incorporated into an initial or follow-up nutritional consultation.


Results are sent within 10 days-2 weeks. Clients are given personalised nutritional plans and optimal support.


Initial sessions take 3 hours and follow-up sessions take 1 hour 15 minutes.


Initial sessions cost £620 and follow-up sessions cost £440.


In Person Testing: 200+ Food Panel + hs-CRP + Naturopathic Consultation

Testing is incorporated into an initial or follow-up naturopathic consultation.


This option is advised for clients with multiple symptoms and chronic conditions.


Personalised naturopathic plans and holistic support is given post consultations.


Initial sessions take 3 hours and follow-up sessions take 1 hour 15 minutes.


Initial sessions cost £640 and follow-up sessions cost £470.

Additional Services

Here at Holistic Healing we like to ensure our services are available to those who cannot travel to our clinic. Thus, we also offer at home (do-it-yourself) food sensitivity testing. Please visit the 'Shop' browser to order a kit and find out more information.

What Foods Do We Test?

Please Note: The tests we use do not provide information about IgE-mediated allergies, coeliac disease, enzyme deficiencies such as lactose, histamine, tyramine, alcohol intolerance or other chemical sensitivities such as reactions to certain food additives.


60+ Food Test

Cows milk, eggs, fresh water fish mix (salmon, trout- non specific), shellfish mix (shrimp, prawn, crab, lobster, mussel-non specific), white fish mix (haddock, cod, plaice- non specific), tuna, apples, blackcurrant, oranges, lemons, grapefruit, melon, olive, strawberry, corn, durum wheat, oat, gluten, rice, rye, wheat, garlic, ginger, beef, chicken, lamb, pork, cocoa bean, mushroom, tea, yeast, almond, brazil nut, cashew, peanut, walnut, broccoli, cabbage, carrot, celery, cucumber, leek, legumes, peppers, potato, soya bean, tomato.

200+ Food Test


Alpha-lactalbumin, beta-lactoglobulin, casein, egg white, egg yolk, buffalo milk, cow milk, goat milk, sheep milk, barley, couscous, durum wheat, gliadin, malt, oat, rye, spelt, wheat, wheat bran, amaranth, buckwheat, corn, millet, quinoa, rice, tapioca, apples, apricot, avocado, banana, blackberry, blueberry, cherry, cranberry, date, fig, grape, grapefruit, guava, kiwi, lemon, lime, lychee, mango, melon, mulberry, nectarine, olive, orange, papaya, peach, pear, pineapple, plum, pomegranate, raisin, raspberry, redcurrant, rhubarb, strawberry, tangerine, watermelon, artichoke, asparagus, aubergine, broad bean, green bean, red kidney bean, white haricot bean, beetroot, broccoli, brussel sprout, red cabbage, white cabbage, caper, carrot, cauliflower, celery, chard, chickpea, chicory, cucumber, fennel, leek, lentil, lettuce, marrow, onion, pea, pepper, potato, radish, rocket, shallot, soya bean, spinach, squash, sweet potato, tomato, turnip, watercress, yuca, anchovy, bass, carp, caviar, clam, cokle, cod, crab, cuttlefish, eel, haddock, hake, herring, lobster, mackerel, monkfish, mussel, octopus, oyster, perch, pike, plaice, salmon, sardine, scallop, sea bream, shrimp, sole, squid, swordfish, trout, tuna, turbot, beef, chicken, duck, horse, lamb, ostrich, partridge, pork, quail, rabbit, turkey, veal, venison, wild boar, aniseed, basil, bayleaf, chamomile, cayenne, chilli, cinnamon, clove, coriander, cumin, mixed curry spices, dil, garlic, ginger, ginseng, hops, liquorice, marjoram, mint, mustard seed, nettle, nutmeg, parsley, peppercorn, peppermint, rosemary, saffron, safe, tarragon, thyme, vanilla, almond, brazil nut, cashew, coconut, flax seed, hazelnut, macadamia nut, peanut, pine nut, pistachio, rapeseed, sesame seed, sunflower seed, tiger nut, walnut, agar agar, aloe vera, carob, chesnut, cocoa bean, coffee, mushroom, black tea, green tea, bakers yeast, brewers yeast + hs-CRP 

Why Test hs-CRP?

A standard CRP test identifies high grade inflammation which can signal many different conditions, including cancer, cardiovascular disease, infection, and autoimmune conditions, such as rheumatoid arthritis, lupus erythematosus and inflammatory bowel disease. If it remains elevated further investigation is recommended with the support of a general practitioner in order to address underlying causes.


In contrast, low grade inflammation may present with non-specific symptoms, such as pain, fatigue, insomnia, depression, anxiety, digestive problems, weight gain and frequent infections. Research links low grade inflammation to chronic health conditions and measuring hs-CRP levels may provide a valuable signal to the early stages of disease, such as type 2 diabetes, obesity or potential future weight gain and cardiovascular disease. The results can then be used as a tool to suggest where preventative strategies could be implemented or to monitor the effectiveness of protocols. Low grade inflammation may also contribute towards neurodegenerative conditions, such as Alzheimer’s and Parkinson’s disease.


Please do not use this test if pregnant or breastfeeding, taking blood thinning agents, or there are any other conditions or symptoms which are of concern. Do not use this test if taking immunosuppressants (e.g steroids, methotrexate), cancer therapies, antibody therapies, or suffer from a blood clotting disease. These test are only suitable for patients aged 2 years old and above. We recommend that you follow your normal diet, so that the test will reflect what you usually eat. However, if you have specifically avoided a food for more than three months, e.g cow’s milk, and you would like it tested, unless you have symptoms when you reintroduce, we would recommend you reintroduce one normal portion daily for five days prior to testing. If you have a diagnosed food allergy or coeliac disease do not reintroduce these foods.

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