AI Insight
A new study found that both caffeinated and decaffeinated coffee consumption may influence mood and cognitive function through alterations in gut microbiome activity. Both types of coffee were associated with reduced stress, depression, and impulsivity, along with measurable changes in gut bacteria and metabolites. Decaffeinated coffee showed particular benefits for learning and memory, while caffeinated coffee appeared more effective at reducing anxiety and improving attention.
Why it matters
This research suggests a potential mechanism linking coffee consumption to mental health benefits through the gut-brain axis, rather than through caffeine alone. The findings could inform dietary recommendations for cognitive health and mood regulation, and may guide development of targeted interventions using gut microbiome modulation.
Understand the Science
A new study suggests coffee may influence mood and brain function by changing the activity of microbes in the gut. Both caffeinated and decaf coffee were linked to lower stress, depression, and impulsivity, while also producing measurable changes in gut bacteria and metabolites. Decaf was associated with better learning and memory, while caffeinated coffee appeared to reduce anxiety and improve attention.
Source: Scientists just discovered what coffee really does to your gut and brain