University College Cork researchers find both caffeinated and decaffeinated coffee affect gut, mood, and cognition
Updated
Updated · ScienceAlert · Apr 26
University College Cork researchers find both caffeinated and decaffeinated coffee affect gut, mood, and cognition
13 articles · Updated · ScienceAlert · Apr 26
The study involved 62 participants in Ireland, comparing coffee drinkers and non-drinkers, and tested effects after abstaining and resuming either caffeinated or decaffeinated coffee.
Both coffee types shifted gut microbiome strains, lowered stress, depression, impulsivity, and inflammation, and improved mood and cognition, but only caffeinated coffee reduced anxiety and blood pressure and boosted attention and stress coping.
Decaffeinated coffee enhanced sleep, physical activity, and memory. The findings highlight coffee's complex influence on the gut-brain axis and suggest further research is needed to clarify mechanisms and individual health impacts.
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