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Comparison of Various Databases for Estimation of Dietary Polyphenol Intake in the Population of Polish Adults.

Witkowska AM, Zujko ME, Waśkiewicz A, Terlikowska KM, Piotrowski W - Nutrients (2015)

Bottom Line: This study found that tea is the primary source of polyphenols and flavonoids for the studied population, including mainly flavanols, while coffee is the most important contributor of phenolic acids, mostly hydroxycinnamic acids.Our study also demonstrated that flavonoid intakes estimated according to various databases may substantially differ.Further work should be undertaken to expand polyphenol databases to better reflect their food contents.

View Article: PubMed Central - PubMed

Affiliation: Department of Food Commodities Science and Technology, Medical University, Szpitalna 37, Bialystok 15-295, Poland. witam@umb.edu.pl.

ABSTRACT
The primary aim of the study was to estimate the consumption of polyphenols in a population of 6661 subjects aged between 20 and 74 years representing a cross-section of the Polish society, and the second objective was to compare the intakes of flavonoids calculated on the basis of the two commonly used databases. Daily food consumption data were collected in 2003-2005 using a single 24-hour dietary recall. Intake of total polyphenols was estimated using an online Phenol-Explorer database, and flavonoid intake was determined using following data sources: the United States Department of Agriculture (USDA) database combined of flavonoid and isoflavone databases, and the Phenol-Explorer database. Total polyphenol intake, which was calculated with the Phenol-Explorer database, was 989 mg/day with the major contributions of phenolic acids 556 mg/day and flavonoids 403.5 mg/day. The flavonoid intake calculated on the basis of the USDA databases was 525 mg/day. This study found that tea is the primary source of polyphenols and flavonoids for the studied population, including mainly flavanols, while coffee is the most important contributor of phenolic acids, mostly hydroxycinnamic acids. Our study also demonstrated that flavonoid intakes estimated according to various databases may substantially differ. Further work should be undertaken to expand polyphenol databases to better reflect their food contents.

No MeSH data available.


Flow-chart of study participants.
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nutrients-07-05464-f001: Flow-chart of study participants.

Mentions: The Polish National Multicenter Health Survey (WOBASZ) is a cross-sectional study representative for the general Polish adult population aged between 20 and 74 years. This study was carried out by the National Institute of Cardiology, Warsaw, Poland, in the years 2003–2005, in collaboration with five Polish medical universities. The response rate was 76.8%. The general assessment involved a sample of more than 13,500 participants (Figure 1). Among this group approximately 50% randomly selected subjects took part in the dietary assessment. Written informed consent was obtained from all participants. The WOBASZ study obtained approval from the Bioethics Committee of the National Institute of Cardiology (no. 708). The rationale, design and methods of the WOBASZ study were described in detail elsewhere [14,15]. Description of selection procedure was introduced in our previous paper [16].


Comparison of Various Databases for Estimation of Dietary Polyphenol Intake in the Population of Polish Adults.

Witkowska AM, Zujko ME, Waśkiewicz A, Terlikowska KM, Piotrowski W - Nutrients (2015)

Flow-chart of study participants.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4663592&req=5

nutrients-07-05464-f001: Flow-chart of study participants.
Mentions: The Polish National Multicenter Health Survey (WOBASZ) is a cross-sectional study representative for the general Polish adult population aged between 20 and 74 years. This study was carried out by the National Institute of Cardiology, Warsaw, Poland, in the years 2003–2005, in collaboration with five Polish medical universities. The response rate was 76.8%. The general assessment involved a sample of more than 13,500 participants (Figure 1). Among this group approximately 50% randomly selected subjects took part in the dietary assessment. Written informed consent was obtained from all participants. The WOBASZ study obtained approval from the Bioethics Committee of the National Institute of Cardiology (no. 708). The rationale, design and methods of the WOBASZ study were described in detail elsewhere [14,15]. Description of selection procedure was introduced in our previous paper [16].

Bottom Line: This study found that tea is the primary source of polyphenols and flavonoids for the studied population, including mainly flavanols, while coffee is the most important contributor of phenolic acids, mostly hydroxycinnamic acids.Our study also demonstrated that flavonoid intakes estimated according to various databases may substantially differ.Further work should be undertaken to expand polyphenol databases to better reflect their food contents.

View Article: PubMed Central - PubMed

Affiliation: Department of Food Commodities Science and Technology, Medical University, Szpitalna 37, Bialystok 15-295, Poland. witam@umb.edu.pl.

ABSTRACT
The primary aim of the study was to estimate the consumption of polyphenols in a population of 6661 subjects aged between 20 and 74 years representing a cross-section of the Polish society, and the second objective was to compare the intakes of flavonoids calculated on the basis of the two commonly used databases. Daily food consumption data were collected in 2003-2005 using a single 24-hour dietary recall. Intake of total polyphenols was estimated using an online Phenol-Explorer database, and flavonoid intake was determined using following data sources: the United States Department of Agriculture (USDA) database combined of flavonoid and isoflavone databases, and the Phenol-Explorer database. Total polyphenol intake, which was calculated with the Phenol-Explorer database, was 989 mg/day with the major contributions of phenolic acids 556 mg/day and flavonoids 403.5 mg/day. The flavonoid intake calculated on the basis of the USDA databases was 525 mg/day. This study found that tea is the primary source of polyphenols and flavonoids for the studied population, including mainly flavanols, while coffee is the most important contributor of phenolic acids, mostly hydroxycinnamic acids. Our study also demonstrated that flavonoid intakes estimated according to various databases may substantially differ. Further work should be undertaken to expand polyphenol databases to better reflect their food contents.

No MeSH data available.