Ever wished you hadn't eaten that?

Ever wished you hadn’t eaten that?

October 11, 2019

Do you think there are foods, which disagree with you? Have you worked out which foods don’t suit your body? Are you avoiding the right foods?

The World Allergy Organisation (WAO) estimate of allergy prevalence of the whole population by country ranges between 10 – 40% [1]. A staggering 44% of British adults now suffer from at least one allergy and the number of sufferers is on the rise, growing by around 2 million between 2008 and 2009 alone. Almost half (48%) of sufferers have more than one allergy [2].  At The Food Teacher™ Clinic we typically work with clients to initially eliminate common foods and keep a food diary alongside signs and symptoms. This approach can be invaluable but very often clients have tried this before or have struggled for years and a test can be a useful tool.

Food intolerances can be related to so many different symptoms including bloating, IBS, migraines, joint pain, foggy brain, weight gain and general sluggishness. Although not life-threatening, the uncomfortable symptoms can have a major impact on a person’s quality of life.

Food intolerance [3] is characterised as a delayed onset food reaction as symptoms can take several hours, and often, even days, to develop. The body produces food-specific IgG antibodies as a defence against certain ingredients that may not agree with you. A reaction manifests when incompletely digested food particles enter the bloodstream and are treated as foreign substances – antibodies attack the food in question and can generate an inflammatory response.

There is now a wealth of published research papers, showing a link and often removal of IgG reactive food can improve conditions such as:

  • * IBS/Bloating/Digestive conditions [4, 5]
  • * Depression [6]
  • * Asthma [7]
  • * Weight management [8]
  • * Headaches & Migraines [9]
  • * Skin Problems
  • * Fatigue
  • * Thyroid Issues
  • * Weight Management
  • * Joint Pain
  • * Respiratory Problems


Many people confuse an intolerance with an allergy, but the two are very different. Potentially life threatening and quite rare, the immune response that causes an allergic reaction happens soon after consuming specific foods such as peanuts or shellfish. Food allergies are a cause of particular concern in young children, where the incidence of food allergy is estimated to be greater in toddlers (5-8%) than in adults (1-2%) [10].


Importance of gut health

A healthy digestive system absorbs the required nutrients from food, banishing waste and harmful substances from the body. It is no surprise that the gut is often referred to as the body’s ‘second brain’ and it has huge influence over moods, behaviour and general health. As much as 90% of the body’s serotonin (a mood-boosting brain chemical) is made there, while 90% of the fibres that make up the body’s main nerve are responsible for carrying information from the gut to the brain, so keeping it healthy is vital.


Overcoming food intolerance

Keeping a detailed diary to record what is being eaten at every meal can help pinpoint ‘trigger’ foods. After cutting them out for around 12 weeks, the foods can then be reintroduced back into the diet, thus helping your body build up resistance. It can be difficult to ascertain which ingredients provoke reactions and there is the risk of depriving yourself of nutrients you don’t need to avoid. If you cut out a combination of suspected ingredients all at once it can make it harder to know.

From bloating and IBS to migraines and joint pain, food intolerance causes misery and uncomfortable symptoms for thousands of people. We look at the symptoms, causes and treatments. In many cases, people eat their trigger foods routinely or regularly, so each reaction can run into the next one. Then they might get almost continuous symptoms, such as bloating nearly every day, IBS or more frequent migraines. Understanding your personal food and drink intolerances can help you identify what you are reacting to. A home kit finger prick blood test can pinpoint precisely which foods are causing high levels of IgG antibodies in your blood. The test checks for reactions to foods, and shows levels of reactivity.

At The Food Teacher™ Clinic  we have just launched our NEW Food Intolerance Test which includes a home Food Intolerance test kit (testing for 134 foods and drinks, divided into: Grains & Staples, Dairy & Eggs, Protein Supplements, Fruits, Vegetables, Herbs, Spices & Oils) and a follow up 15-minute Mini Consultation (over the telephone) with a Food Teacher™ Registered Nutritional Therapist to discuss results and next steps. For more information follow the above link or email info@thefoodteacher.co.uk

This will be on SALE from £190 to £150 for the next 4 weeks (until 3rd November 2019).


  1. Prescott, S.L., Pawankar, R., Allen, K.J., Campbell, D.E., Sinn, J.K., Fiocchi, A., Ebisawa, M., Sampson, H.A., Beyer, K. and Lee, B.W., 2013. A global survey of changing patterns of food allergy burden in children. World Allergy Organization Journal6(1), pp.1-12.
  2. Foods Matter. (2010). Mintel’s Allergy and Allergy Remedies UK . Retrieved May 24, 2017, from Foods Matter: http://www.foodsmatter.com/allergy_intolerance/miscellaneous/articles/mintel_allergy_report_2010.html
  3. Allergyukorg. 2019. Allergyukorg. [Online]. [11 October 2019]. Available from: https://www.allergyuk.org/information-and-advice/conditions-and-symptoms/586-types-of-food-intolerance
  4. Lee, H.S. and Lee, K.J., 2017. Alterations of Food-specific Serum IgG4 Titers to Common Food Antigens in Patients With Irritable Bowel Syndrome. Journal of neurogastroenterology and motility23(4), p.578.
  5. Bentz, S., Hausmann, M., Piberger, H., Kellermeier, S., Paul, S., Held, L., Falk, W., Obermeier, F., Fried, M., Schölmerich, J. and Rogler, G., 2010. Clinical relevance of IgG antibodies against food antigens in Crohn’s disease: a double-blind cross-over diet intervention study. Digestion, 81(4), pp.252-264.
  6. Karakuła-Juchnowicz, H., Szachta, P., Opolska, A., Morylowska-Topolska, J., Gałęcka, M., Juchnowicz, D., Krukow, P. and Lasik, Z., 2017. The role of IgG hypersensitivity in the pathogenesis and therapy of depressive disorders. Nutritional neuroscience20(2), pp.110-118.
  7. Virdee, K., Musset, J., Baral, M., Cronin, C. and Langland, J., 2015. Food-specific IgG Antibody—guided Elimination Diets Followed by Resolution of Asthma Symptoms and Reduction in Pharmacological Interventions in Two Patients: A Case Report. Global advances in health and medicine4(1), pp.62-66.
  8. Lewis, J.E., Woolger, J.M., Melillo, A., Alonso, Y. and Rafatjah, S., 2012. Eliminating Immunologically-Reactive Foods from the Diet and its Effect on Body Composition and Quality of Life in Overweight Persons. J Obes Weig los Ther2(112), p.2.
  9. Alpay, K., Ertaş, M., Orhan, E.K., Üstay, D.K., Lieners, C. and Baykan, B., 2010. Diet restriction in migraine, based on IgG against foods: a clinical double-blind, randomised, cross-over trial. Cephalalgia30(7), pp.829-837.
  10. Pawankar R, C. G. (2013). The WAO White Book on Allergy (Update 2013).