Granola consumption with multiple prebiotics in Japanese participants increases <i>Bifidobacterium</i> abundance and improves stress and subjective sleepiness.

ABSTRACT:

Background

Sleep is essential for physical and mental health. However, stress-related sleep disorders are common in Japan, and the gut-brain axis may play a role in sleep and stress management. This study investigated whether the consumption of granola containing multiple prebiotic ingredients could alleviate stress and improve insomnia in adults with stress-related sleep problems, regardless of individual differences in the gut microbiota. Additionally, we aimed to investigate the relationship between changes in gut microbiota and the observed improvements.

Method

A single-arm uncontrolled trial was conducted with 27 adults with high stress levels and sleep disturbance. The participants consumed 50 g of prebiotics-containing granola daily for 8 weeks. Subjective sleep quali

SUBMITTER: Sasaki H 

PROVIDER: S-EPMC11965129 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature