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United States Department of Agriculture

Agricultural Research Service

Completed Studies
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1 - Whey Protein and Blood Pressure
2 - Blackberry
3 - Cranberry
4 - Anthocyanin
5 - Garlic 2010
6 - Almond
7 - Pistachio
8 - Lipid
9 - Sterol


Main Study Question


Is absorption efficiency of anthocyanins from strawberries and blackberries affected by gastric pH? 


Motivation for Research


Consumers are increasing consumption of anthocyanin-rich foods, especially berries, as a strategy to prevent chronic diseases including cancer, heart disease and diminished brain function.  In order for anthocyanins to reach internal tissues and provide purported protection, they must be absorbed from the gastrointestinal tract.  This research is aimed at identifying the site of anthocyanin absorption in humans and the degree to which pH influences transfer of anthocyanins from the GI tract to the bloodstream.  An understanding of these factors will lead to strategies for enhancing efficiency of absorption of anthocyanins.

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Last Modified: 11/21/2014
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