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Current Participants - Adults

Below you will find the links (in "red") to all of the information needed throughout the entire study period. Click on the link to be directed to that page.

One-Week Information Collection Period

Five-week Probiotic or Placebo Phase

Instructions on taking the Probiotic and Placebo Powder!


To take the probiotic or placebo powder, you should open the packet, tilt your head back, and pour the powder onto your tongue. Another option is to take the powder by mixing it with a non-alcoholic drink (e.g. milk, water, juice...). Make sure that the drink is NOT hot. Try to take the probiotic/placebo at approximately the same time each day. DO NOT drink alcohol two hours before and after you take the powder.

For questions and inquiries please contact us at probiotics.study@gmail.com