New Study Illustrates Coffee’s Unique Influence on Your Gut

Learn about how coffee dramatically affects gut bacteria levels, according to research involving nearly 77,200 study participants.

Photo Smoothies/Shutterstock

Coffee drinkers consistently harbor up to eight times more of a specific gut bacterium than nondrinkers, according to recent research.

The international study, which tracked the drinking habits of nearly 77,200 people across 25 countries, found that coffee consumption leaves a distinct microbial signature. Researchers can identify coffee drinkers with 95 percent accuracy by examining their gut bacteria alone.

How Your Brew Affects Gut Microbiome

A 2021 study established that coffee had the strongest correlation with microbiome composition among over 150 studied foods, notably affecting levels of Lawsonibacter asaccharolyticus in approximately 1,000 people.