title: Dietary polyphenols and metabolic syndrome among Iranian adults.
abstract: OBJECTIVE
  The aim of this study was to investigate the association between total polyphenol intake, its subclasses (including flavonoids, phenolic acids, stilbenes and lignans), and the metabolic syndrome (MetS).
  
  
  METHODS
  This population-based cross-sectional study was conducted on a representative of 2618 adults, aged 19 to 84 years. Dietary intake was assessed using a validated food-frequency questionnaire and intakes of total polyphenol and four main subclasses of polyphenol including flavonoids, phenolic acids, stilbenes and lignans were determined.
  
  
  RESULTS
  Higher consumption of flavonoid intakes was associated with lower odds of enlarged waist circumference, hypertriglyceridemia, low HDL cholesterol, hyperglycemia, hypertension and MetS. Subjects in the highest quartile of lignan intakes had higher odds of having hypertriglyceridemia and hyperglycemia. Subjects in the highest quartile of stilbene intakes had higher odds of having hypertension.
  
  
  CONCLUSIONS
  Intakes of selected subclasses of polyphenol such as flavonoids are associated with a lower prevalence of MetS among Tehranians.
authors.affiliation: Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Golbon
authors.initials: G
authors.lastname: Sohrab
authors.forename: Somayeh
authors.initials: S
authors.lastname: Hosseinpour-Niazi
authors.forename: Jalal
authors.initials: J
authors.lastname: Hejazi
authors.forename: Emad
authors.initials: E
authors.lastname: Yuzbashian
authors.forename: Parvin
authors.initials: P
authors.lastname: Mirmiran
authors.forename: Fereidoun
authors.initials: F
authors.lastname: Azizi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D004032:Diet / Q000009:adverse effects / Q000208:ethnology; D005260:Female; D005419:Flavonoids / Q000008:administration & dosage / Q000627:therapeutic use; D006306:Health Surveys; D006801:Humans; D007492:Iran / Q000453:epidemiology; D017705:Lignans / Q000008:administration & dosage / Q000009:adverse effects; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology / Q000208:ethnology / Q000209:etiology / Q000517:prevention & control*; D008875:Middle Aged; D059808:Polyphenols / Q000009:adverse effects / Q000627:therapeutic use*; D015995:Prevalence; D011446:Prospective Studies; D013267:Stilbenes / Q000008:administration & dosage / Q000009:adverse effects; D014504:Urban Health / Q000208:ethnology; D055815:Young Adult
chemical_list: D005419:Flavonoids; D017705:Lignans; D059808:Polyphenols; D013267:Stilbenes