Danish study finds coffee boosts digestion and reduces acidity

A study conducted in Denmark has found that regular coffee consumption not only affects the composition of microorganisms in the small intestine, but also influences the function of the digestive system itself.

Researchers noted that, similar to previous studies, people who drink coffee regularly have a greater diversity of gut microbiota compared to those who consume coffee less frequently.

Francesca Pucci, lead researcher from the University of Copenhagen, said in a statement that consistent coffee drinkers experience increased colon contractions, which may support healthy digestion, help prevent constipation, and keep intestinal muscles in good condition.

The researchers, writing in the journal Gut Microbiome, also reported that coffee drinkers had significantly lower acidity levels in the small intestine.

While it is not yet clear whether this reduced acidity is beneficial or harmful, the researchers noted that acidity plays an important role in how food is broken down.

In the study, 61 participants swallowed small electronic capsules that traveled through their digestive tracts to measure temperature, acidity, intestinal contractions, and other factors.

Participants classified as regular coffee drinkers consumed at least one cup of coffee per day on more than three of the eight days of the study.

Although the study cannot prove that these differences are caused by coffee consumption, the researchers pointed out that coffee is known to affect various digestive processes, including acid secretion in the stomach.

Henrik Munch Roeger, a co-author of the study from the University of Copenhagen, said in a statement, "A very large number of people suffer from constipation and irregular bowel movements."

He added, "If we can understand how coffee affects digestion and intestinal contractions, it may be possible to use this knowledge to stimulate bowel movements naturally."