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. 2019 Sep 10;11(9):2165.
doi: 10.3390/nu11092165.

Intake of Nutrient and Non-Nutrient Dietary Antioxidants. Contribution of Macromolecular Antioxidant Polyphenols in an Elderly Mediterranean Population

Isabel Goñi  1 , Ana Hernández-Galiot  2
Affiliations

Intake of Nutrient and Non-Nutrient Dietary Antioxidants. Contribution of Macromolecular Antioxidant Polyphenols in an Elderly Mediterranean Population

Isabel Goñi et al. Nutrients. .

Abstract

The intake of antioxidants in the diet is a useful parameter to estimate the potential of diet to prevent chronic diseases associated with oxidative stress and ageing. The objective was to estimate the intake of nutrient and non-nutrient antioxidants associated with the dietary fiber matrix in a healthy and functionally independent population aged over 80, estimating the intake of antioxidant nutrients and including soluble low molecular weight and macromolecular polyphenols in the non-nutrient antioxidant group. Specific nutrients related to oxidative stress (copper, zinc, selenium, manganese, vitamins A, C and E) were ingested in optimal quantities according to reference values. Total intake of non-nutrient antioxidants was 2196 mg/person/day, and macromolecular polyphenols were found to be the main dietary antioxidants, contributing 71% to the total intake of phenolic compounds. The intake, metabolism and physiological effects of all nutrient and non-nutrient dietary antioxidants must therefore be taken into account when evaluating their health benefits.

Keywords: bioactive components; dietary antioxidants; dietary fiber; elderly; macromolecular polyphenols.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Contribution of macromolecular polyphenols to the daily intake (LP: Low molecular polyphenols; MHP: Molecular hydrolysable polyphenols; MPP: Macromolecular polymeric polyphenols).
Figure 2
Figure 2
Contribution of plant foods to the intake of phenolic compounds in the total diet (LP: Low molecular polyphenols; MHP: Molecular hydrolysable polyphenols; MPP: Macromolecular polymeric polyphenols).
See this image and copyright information in PMC

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