title: Association between Western diet pattern and adult asthma: a focused review.
abstract: OBJECTIVE
  Radical changes in diet have paralleled the increase in asthma with shifts toward a "Western" diet pattern, characterized by the high intake of processed meats and refined grains, high-fat dairy products, and sugary desserts and drinks. Because diet represents a modifiable risk factor in numerous chronic diseases, the authors examined the association between consumption of a Western diet pattern and asthma incidence, prevalence, and morbidity in adults.
  
  
  METHODS
  PubMed, Cochrane, Web of Science, and Scopus were searched for peer-reviewed publications published from January 1980 to April 2014.
  
  
  METHODS
  Studies retrieved for inclusion assessed dietary patterns representative of a Western diet and asthma incidence, prevalence, respiratory symptoms, and lung function.
  
  
  RESULTS
  Ten observational studies conducted in North American, European, and Asian countries, ranging from 153 to more than 70,000 individuals, did not provide evidence to support an association between a Western dietary pattern and asthma incidence and prevalence. Five of these studies also investigated asthma morbidity, with variable findings.
  
  
  CONCLUSIONS
  Current evidence does not support an association between a Western diet and incident or prevalent adult asthma but does suggest a possible link between a Western diet pattern and adult asthma morbidity.
authors.affiliation: The Johns Hopkins University School of Medicine, Baltimore, Maryland.
authors.forename: Emily P
authors.initials: EP
authors.lastname: Brigham
authors.affiliation: Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
authors.forename: Fariba
authors.initials: F
authors.lastname: Kolahdooz
authors.affiliation: The Johns Hopkins University School of Medicine, Baltimore, Maryland; The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
authors.forename: Nadia
authors.initials: N
authors.lastname: Hansel
authors.affiliation: The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
authors.forename: Patrick N
authors.initials: PN
authors.lastname: Breysse
authors.affiliation: The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
authors.forename: Meghan
authors.initials: M
authors.lastname: Davis
authors.affiliation: Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
authors.forename: Sangita
authors.initials: S
authors.lastname: Sharma
authors.affiliation: The Johns Hopkins University School of Medicine, Baltimore, Maryland; The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
authors.forename: Elizabeth C
authors.initials: EC
authors.lastname: Matsui
authors.affiliation: The Johns Hopkins University School of Medicine, Baltimore, Maryland; The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
authors.forename: Gregory
authors.initials: G
authors.lastname: Diette
authors.affiliation: The Johns Hopkins University School of Medicine, Baltimore, Maryland; The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland. Electronic address: mmccor16@jhmi.edu.
authors.forename: Meredith C
authors.initials: MC
authors.lastname: McCormack
mesh_terms: D000328:Adult; D000818:Animals; D001208:Asia / Q000453:epidemiology; D001249:Asthma / Q000453:epidemiology*; D066273:Diet, Western / Q000706:statistics & numerical data*; D005060:Europe / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D009656:North America / Q000453:epidemiology; D015995:Prevalence