Coffee appears to rewire the gut-brain connection
Coffee consumption appears to influence both gut health and brain function through the gut-brain axis, with both caffeinated and decaffeinated varieties showing benefits. Decaf coffee improved learning and memory, while caffeinated coffee enhanced focus and reduced anxiety. The study suggests coffee's effects extend beyond caffeine, involving changes in gut microbiota linked to mood and cognition.
- ▪Both caffeinated and decaffeinated coffee altered gut bacteria in ways associated with improved mood and reduced stress.
- ▪Decaffeinated coffee improved learning and memory, indicating non-caffeine compounds like polyphenols play a role in cognitive benefits.
- ▪Caffeinated coffee was linked to reduced anxiety, better attention, and lower inflammation risk.
- ▪Specific gut bacteria such as Eggertella sp, Cryptobacterium curtum, and Firmicutes were more abundant in coffee drinkers.
- ▪The study involved 62 participants and measured psychological, dietary, and microbial changes over time.
Opening excerpt (first ~120 words) tap to expand
Science News from research organizations Scientists just discovered what coffee is really doing to your gut and brain Date: May 3, 2026 Source: University College Cork Summary: Coffee doesn’t just energize—it actively reshapes the gut and mind. Researchers found that both caffeinated and decaf coffee altered gut bacteria in ways linked to better mood and lower stress. Decaf even improved learning and memory, while caffeine boosted focus and reduced anxiety. Together, they show coffee works through multiple pathways beyond just caffeine. Share: Facebook Twitter Pinterest LinkedIN Email FULL STORY Coffee appears to rewire the gut-brain connection, changing microbes that influence mood, stress, and cognition.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Hacker News: Front Page.
Discussion
0 commentsMore from Hacker News: Front Page
