Biomarkers of the intake of dietary polyphenols: strengths, limitations and application in nutrition research

In order to establish firm evidence for the health effects of dietary polyphenol consumption, it is essential to have quantitative information regarding their dietary intake. The usefulness of the current methods, which rely mainly on the assessment of polyphenol intake using food records and food c...

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Bibliographic Details
Published in:British journal of nutrition 2008-01, Vol.99 (1), p.12-22
Main Authors: Spencer, Jeremy P. E., Abd El Mohsen, Manal M., Minihane, Ann-Marie, Mathers, John C.
Format: Article
Language:English
Subjects:
Biomarker
Biomarkers
Biomarkers - analysis
Biomarkers - blood
Biomarkers - urine
blood chemistry
Diet
Diet Surveys
dietary surveys
Flavonoid
Flavonoids - administration & dosage
Flavonoids - analysis
Flavonoids - blood
Flavonoids - metabolism
Flavonoids - urine
food choices
food composition
food intake
human nutrition
Human subjects
Humans
Hydroxybenzoates - analysis
Hydroxybenzoates - blood
Hydroxybenzoates - urine
literature reviews
Metabolism
Nutrition Assessment
Nutrition research
Phenolic acid
Phenols - administration & dosage
Phenols - analysis
Phenols - metabolism
Polyphenol
Polyphenols
Research Design
urine
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Summary:In order to establish firm evidence for the health effects of dietary polyphenol consumption, it is essential to have quantitative information regarding their dietary intake. The usefulness of the current methods, which rely mainly on the assessment of polyphenol intake using food records and food composition tables, is limited as they fail to assess total intake accurately. This review highlights the problems associated with such methods with regard to polyphenol-intake predictions. We suggest that the development of biological biomarkers, measured in both blood and urine, are essential for making accurate estimates of polyphenol intake. However, the relationship between dietary intakes and nutritional biomarkers are often highly complex. This review identifies the criteria that must be considered in the development of such biomarkers. In addition, we provide an assessment of the limited number of potential biomarkers of polyphenol intake currently available.
ISSN:0007-1145
1475-2662
DOI:10.1017/S0007114507798938