Dietary intake of 337 polyphenols in French adults

International audienceBackground: Epidemiologic studies have suggested an association between polyphenol intake and health. These studies have been limited to 1 mg/d. Mean total polyphenol intake was estimated at 1193 +/- 510 mg/d (or 820 +/- 335 mg/d when expressed as aglycone equivalents), with hydroxycinnamic acid esters and proanthocyanidins being the most largely consumed polyphenols. These values may have been underestimated because of insufficient data or lack of accurate data on the content in foods for proanthocyanidins and thearubigins. Nonalcoholic beverages and fruit were the most important contributors to polyphenol intakes. Conclusions: The current study provides intake data for all individual polyphenols known to be present in the diet of a cohort. This information will be essential to characterize the health effects of individual phenolic compounds that differ widely in their bioavailability and physiologic properties. The SU.VI.MAX study was registered at clinicaltrials. gov as NCT00272428. Am J Clin Nutr 2011;93:1220-8