Article Publish Status: FREE
Abstract Title:

Mechanisms by which cocoa flavanols improve metabolic syndrome and related disorders.

Abstract Source:

J Nutr Biochem. 2016 Sep ;35:1-21. Epub 2016 Jan 23. PMID: 27560446

Abstract Author(s):

Karen M Strat, Thomas J Rowley, Andrew T Smithson, Jeffery S Tessem, Matthew W Hulver, Dongmin Liu, Brenda M Davy, Kevin P Davy, Andrew P Neilson

Article Affiliation:

Karen M Strat


Dietary administration of cocoa flavanols may be an effective complementary strategy for alleviation or prevention of metabolic syndrome, particularly glucose intolerance. The complex flavanol composition of cocoa provides the ability to interact with a variety of molecules, thus allowing numerous opportunities to ameliorate metabolic diseases. These interactions likely occur primarily in the gastrointestinal tract, where native cocoa flavanol concentration is high. Flavanols may antagonize digestive enzymes and glucose transporters, causing a reduction in glucose excursion, which helps patients with metabolic disorders maintain glucose homeostasis. Unabsorbed flavanols, and ones that undergo enterohepatic recycling, will proceed to the colon where they can exert prebiotic effects on the gut microbiota. Interactions with the gut microbiota may improve gut barrier function, resulting in attenuated endotoxin absorption. Cocoa may also positively influence insulin signaling, possibly by relieving insulin-signaling pathways from oxidative stress and inflammation and/or via a heightened incretin response. The purpose of this review is to explore the mechanisms that underlie these outcomes, critically review the current body of literature related to those mechanisms, explore the implications of these mechanisms for therapeutic utility, and identify emerging or needed areas of research that could advance our understanding of the mechanisms of action and therapeutic potential of cocoa flavanols.

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