Prebiotic Effects on Anxiety, Cortisol, and Emotional Processing in Mild-to-Moderately Stressed Adults

The prebiotic supplement (Bimuno®) is a galactooligosaccharide (GOS) supplement derived from lactose which is publicly available and sold in the UK. Subjects will consume a daily dose of 2.75g GOS (3.65g total powder) which will be administered in sachets and consumed with breakfast by mixing into water, tea or coffee, or sprinkling on top of/mixing into food.

A matched placebo for the prebiotic intervention, containing 3.65g of maltodextrin. Consumed in the same manner as the prebiotics.