The overall purpose of this study is to evaluate the effect of nutritional supplementation with a well-characterized preparation of Concord grape polyphenol-soy protein isolate (GP-SPI) on the composition of the gut microbiota.
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Gut Microbiota Composition
Timeframe: 16S rRNA amplicon sequencing will be performed on samples collected at baseline (before intervention, day -5), after 5 days of SPI supplementation (day 0), and after 10 days of GP-SPI supplementation (day 10). Total time frame is 17 days.