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J Agric Food Chem. 2016 Jul 6;64(26):5354-60. doi: 10.1021/acs.jafc.6b01947. Epub 2016 Jun 23.

Dietary Epicatechin Is Available to Breastfed Infants through Human Breast Milk in the Form of Host and Microbial Metabolites.

Author information

1
Biomarkers and Nutrimetabolomics Laboratory, Nutrition and Food Science Department, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences, University of Barcelona , 08028 Barcelona, Spain.
2
Laboratorios Ordesa S.L., Barcelona Science Park , 08028 Barcelona, Spain.
3
Biomedical Research Institute (IBIMA), Service of Endocrinology and Nutrition, Hospital Complex Virgen de la Victoria , 29071 Malaga, Spain.
4
Excellence Centre for Paediatric Research, Biomedical Research Centre, Health Sciences Technological Park, Hospital Universitario San Cecilio , 18012 Granada, Spain.
5
Department of Paediatrics, School of Medicine, University of Granada , 18012 Granada, Spain.
6
GIP-USAL, Faculty of Pharmacy, University of Salamanca , 37007 Salamanca, Spain.

Abstract

Polyphenols play an important role in human health. To address their accessibility to a breastfed infant, we planned to evaluate whether breast milk (BM) (colostrum, transitional, and mature) epicatechin metabolites could be related to the dietary habits of mothers. The polyphenol consumption of breastfeeding mothers was estimated using a food frequency questionnaire and 24 h recalls. Solid-phase extraction-ultra performance liquid chromatography-tandem mass spectrometry (SPE-UPLC-MS/MS) was applied for direct epicatechin metabolite analysis. Their bioavailability in BM as a result of dietary ingestion was confirmed in a preliminary experiment with a single dose of dark chocolate. Several host and microbial phase II metabolites of epicatechin were detected in BM among free-living lactating mothers. Interestingly, a modest correlation between dihydroxyvalerolactone sulfate and the intake of cocoa products was observed. Although a very low percentage of dietary polyphenols is excreted in BM, they are definitely in the diet of breastfed infants. Therefore, evaluation of their role in infant health could be further promoted.

KEYWORDS:

breastfeeding; cocoa; dietary polyphenols; epicatechin host and microbiota metabolites; human breast milk

PMID:
27285570
DOI:
10.1021/acs.jafc.6b01947
[Indexed for MEDLINE]

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