The protective effects of dietary intake of flavonoids and its subclasses on metabolic syndrome incidence.This study aimed to evaluate the association between the intake of total flavonoids and flavonoid subclasses and metabolic syndrome (MetS) risk and to assess the modulating effects of lifestyle factors on these associations.  Moreover, the modifying effect of weight gain on the association between total flavonoids and MetS was assessed by Cox regression analysis.  Also, in participants with weight gain <7%, all flavonoid subclasses had a more pronounced risk-reducing effect. 
flavonoids
Participants in the highest tertile of flavonoid, flavonol, and flavone had a significantly lower MetS risk as compared to those in the lowest tertile.  Overall, the total flavonoid, flavonol, and flavone reduced the risk of MetS; this association could be modified by weight gain.
flavonol
Participants in the highest tertile of flavonoid, flavonol, and flavone had a significantly lower MetS risk as compared to those in the lowest tertile.  Overall, the total flavonoid, flavonol, and flavone reduced the risk of MetS; this association could be modified by weight gain.
flavone