A recent study, conducted by a team of researchers from the Baylor College of Medicine in Houston, US, finds that people who regularly drink coffee have healthier compositions of bacteria in the guts.
The study included 34 participants who were asked to undergo a screening colonoscopy and endoscopy to confirm that their colons are healthy. The researchers obtained 97 colonic mucosa biopsies from different segments of the colon, extracted microbial DNA, and performed 16s rRNA sequencing analysis.
The analysis of the received data showed that people who consume lots of caffeine had high levels of “good” bacteria such as Faecalibacterium and Roseburia, and low levels of Erysipelatoclostridium, a potentially harmful bacterial genus.
The authors write in their paper: “Higher caffeine consumption was associated with increased richness and evenness of the mucosa-associated gut microbiota, and higher relative abundance of anti-inflammatory bacteria, such as Faecalibacterium and Roseburia and lower levels of potentially harmful Erysipelatoclostridium.”