Research from University College Cork indicates that daily coffee consumption, whether caffeinated or decaffeinated, may impact gut bacteria and mood. Involving 62 healthy adults, the study found that participants reported reduced stress and improved cognitive performance after reintroducing coffee. However, experts caution against drawing broad conclusions due to the small sample size and the complexity of measuring real-world cognitive effects. The study highlights the intricate relationship between coffee, gut health, and mental wellbeing.
Key facts
- Study involved 62 healthy adults, split between coffee drinkers and non-drinkers.
- Participants stopped coffee for two weeks before resuming either caffeinated or decaf coffee.
- Both groups reported lower stress and depression after coffee reintroduction.
- Caffeinated group showed improved attention, while decaf group improved episodic memory.
- Experts caution against overgeneralizing findings due to the study's small sample size.
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