Your Daily Coffee Habit May Be Quietly Transforming Your Gut, New Research Suggests
Most people reach for coffee because it helps them wake up, sharpen focus, and start the day with more energy. Over the years, research has also linked regular coffee consumption to a lower risk of type 2 diabetes, improved brain health, and even greater longevity. Now, a major new study points to another surprising reason coffee may support overall health—and this one appears to have little to do with caffeine. In one of the largest investigations of its kind, researchers examined 150 different foods and their effects on the gut microbiome. Among all foods studied, coffee—including decaffeinated varieties—showed the strongest influence on beneficial gut bacteria. The researchers analyzed microbiome data from more than 22,000 participants across five large cohorts in the United States and the United Kingdom. What stood out was the dramatic difference in one particular bacterium: Lawsonibacter asaccharolyticus . People who drank coffee had levels of this microbe that were 4...