The 2011 NICE guideline recommends – “Do not use the following tests in the diagnosis of food allergy: vega test, applied kinesiology, hair analysis, IgG testing”, and that “If food allergy is suspected (by a healthcare professional or the parent, carer, child or young person), a healthcare professional with the appropriate competencies (either a GP or other healthcare professional) should take an allergy-focused clinical history tailored to the presenting symptoms and age of the child or young person.”