Participants will be chosen through an initial sensory test to find high and low-perceivers of astringency. Selected participants will drink a chocolate milk or milk substitute beverage for one week each with washout weeks in between. At the end of each week participants will taste and rate multiple beverages for their astringency and other sensory properties. Participants will provide saliva samples weekly for proteomic analysis and (potentially) analysis of polyphenols. Participants will also be asked to provide a 24 hour dietary recall once per week. Data will be analyzed to determine if there is a relationship between polyphenol exposure, astringency ratings, and salivary protein composition.
Age range
18 Years – 45 Years
Sex
ALL
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Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Relative salivary proteins in saliva
Timeframe: 1 year