Prebiotic stress study pulled before it even started
Symptom relief
Terminated
This study aimed to see if taking a prebiotic for six weeks could reduce morning cortisol (a stress hormone) in healthy young adults aged 18-25 with mild to moderate stress. Participants would have been randomly assigned to receive the prebiotic or a placebo. However, the study w…
Phase: NA • Sponsor: University of Southampton • Aim: Symptom relief
Last updated May 15, 2026 11:56 UTC