
Coffee’s mood effects may run through the gut, not just caffeine
A Nature Communications study found that regular coffee consumption reshaped the gut microbiome and improved perceived stress and mood, with benefits appearing in both caffeinated and decaffeinated groups.
- Researchers compared 31 regular coffee drinkers with 31 non-coffee drinkers.
- A two-week abstinence phase revealed significant microbiome metabolite changes.



