title: Randomised controlled trial of food elimination diet based on IgG antibodies for the prevention of migraine like headaches.
abstract: BACKGROUND
  Research suggests that food intolerance may be a precipitating factor for migraine like headaches.
  
  
  OBJECTIVE
  To evaluate the effectiveness of the ELISA (Enzyme Linked Immuno-Sorbent Assay) Test and subsequent dietary elimination advice for the prevention of migraine like headaches.
  
  
  METHODS
  Randomised controlled trial.
  
  
  METHODS
  Community based volunteers in the UK.
  
  
  METHODS
  Volunteers who met the inclusion criteria for migraine like headaches and had one or more food intolerance were included in the study. Participants received either a true diet (n = 84) or a sham diet (n = 83) sheet. Participants were advised to remove the intolerant foods from their diet for 12 weeks.
  
  
  METHODS
  Number of headache days over a 12 week period (item A MIDAS questionnaire). Other measures includes the total MIDAS score and total HIT-6 score.
  
  
  RESULTS
  The results indicated a small decrease in the number of migraine like headaches over 12 weeks, although this difference was not statistically significant (IRR 1.15 95% CI 0.94 to 1.41, p = 0.18). At the 4 week assessment, use of the ELISA test with subsequent diet elimination advice significantly reduced the number of migraine like headaches (IRR 1.23 95%CI 1.01 to 1.50, p = 0.04). The disability and impact on daily life of migraines were not significantly different between the true and sham diet groups.
  
  
  CONCLUSIONS
  Use of the ELISA test with subsequent diet elimination advice did not reduce the disability or impact on daily life of migraine like headaches or the number of migraine like headaches at 12 weeks but it did significantly reduce the number of migraine like headaches at 4 weeks.
authors.affiliation: York Trials Unit, Department of Health Sciences, University of York, York, YO10 5DD, UK. natasha.mitchell@york.ac.uk
authors.forename: Natasha
authors.initials: N
authors.lastname: Mitchell
authors.forename: Catherine E
authors.initials: CE
authors.lastname: Hewitt
authors.forename: Shalmini
authors.initials: S
authors.lastname: Jayakody
authors.forename: Muhammad
authors.initials: M
authors.lastname: Islam
authors.forename: Joy
authors.initials: J
authors.lastname: Adamson
authors.forename: Ian
authors.initials: I
authors.lastname: Watt
authors.forename: David J
authors.initials: DJ
authors.lastname: Torgerson
mesh_terms: D000328:Adult; D004032:Diet; D004185:Disability Evaluation; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005512:Food Hypersensitivity / Q000097:blood* / Q000150:complications; D006261:Headache / Q000517:prevention & control*; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000276:immunology* / Q000517:prevention & control*; D010147:Pain Measurement; D016037:Single-Blind Method; D011795:Surveys and Questionnaires
chemical_list: D007074:Immunoglobulin G