Australian research deciphers the important role of hydrogen in the digestive system

Hydrogen – normally released as a gas during digestion – actually plays an important role in maintaining gut health, according to research published in Nature Microbiology led by Monash University and the Hudson Institute of Medical Research (Australia).

Research reveals the important role of hydrogen in the digestive system. (Source: Nature Microbiology)

Scientists say hydrogen is produced when gut bacteria ferment undigested carbohydrates. Some of this hydrogen is excreted, but most is recycled by other bacteria, helping to aid digestion and shape the gut microbiome.

This discovery could open the way for the development of new microbiota-based therapies to treat gastrointestinal diseases.

“The average person passes about a liter of gas a day, half of which is hydrogen,” said lead author Dr. Caitlin Welsh. “But hydrogen is not just a cause of bloating, it is also a potential factor in promoting gut health.”

Research shows that bacteria in the gut produce hydrogen using a special enzyme, called Group B [FeFe]-hydrogenase.

However, scientists warn that when hydrogen levels in the gut are too high or too low, people can experience problems such as infections, digestive disorders or even cancer. These hydrogen levels are often checked through breath tests to assess gut health.

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