(1) The figure is based upon research from Zopf, Yurdagül et al. “The Differential Diagnosis of Food Intolerance.” Deutsches Ärzteblatt International 106.21 (2009): 359–370. PMC - which calculates that 18% of those in Industrialised nations are estimated to have a food intolerance and extrapolated against UK census data showing a population of 51,767,543 aged 18+ in the UK. Further research can be viewed on our Scientific Studies Page.
* Smartblood define food intolerance as a food or drink specific IgG antibody reaction.
Smartblood do not claim or attempt to claim to diagnose medical conditions, or cure or treat medical conditions. Our Doctors recommend that you speak with your own GP if you have any medical concerns as typical food intolerance symptoms could also have other causes.