Estimated polyphenol intake and major food sources of the Brazilian population: changes between 2008–2009 and 2017–2018

Abstract

Assessing the dietary intake of polyphenols and their major food sources is the first step towards documenting the associations with health outcomes. Considering recent changes in dietary patterns of the Brazilian population, continuous monitoring of polyphenol intake is important. Thus, the present study was conducted to estimate the polyphenol intake and major food sources in the diet of the Brazilian population using data from the most recent National Dietary Survey (NDS, 2017-2018), to characterize the intake changes according to demographic characteristics and to compare the intake over the past decade in Brazil. Data from two cross-sectional population-based surveys were analyzed in the study. Trends in total and individual polyphenol intake and major food sources were estimated using food consumption data from NDS 2008-2009 (n=34,003) and 2017-2018 (n=46,164). The median (25-75th percentiles) of energy-adjusted polyphenol intake in 2017-2018 was 216.3mg (125.3-495.2mg) per 1000kcal per day (4184 kJ/d), representing an increase of 12.3mg/d from 2008-2009. However, unadjusted polyphenol intakes were similar between the two surveys (medians: 364.3mg/d in 2008-2009 and 366.9mg/d in 2017-2018). The main food sources of total and polyphenol intake classes presented some variations between 2008-2009 and 2017-2018, with greater contribution of rice and beans preparations, salads and tea to polyphenol intake, and decrease of orange contribution. Our study provided an updated information on polyphenol intake and its major food sources. The median intake remains lower than the reported by other populations. Furthermore, the results may contribute to future studies investigating temporal trends in polyphenol intake and disease risk.

Plasma proteome profiling reveals molecular mechanisms underlying the effects of daily consumption of ‘Bahia’ and ‘Cara Cara’ orange juices

“…The flavanones hesperidin and narirutin are the most abundant flavonoids in sweet oranges. 1 Carnauba et al 2 showed that orange juice (OJ) is the third-largest source of total polyphenols, the second-largest source of flavonoids, and the main source of flavanones of the Brazilian population in 2017–2018.…”