The Barcelona Debates on the Human Microbiome

25 – 26 June 2026

We are pleased to announce that the 12th edition of The Barcelona Debates on the Human Microbiome will be held on June 25–26, 2026.

Over the years, it has established itself as a leading global forum in microbiome research, offering participants the chance to engage with the latest breakthroughs and shape the field’s future.

Each year, the Scientific Committee reviews key advances and trends to create a cutting-edge program in microbiome science, fostering collaboration and new insights among researchers and clinicians worldwide.

Further information
will be available soon.

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Last Year’s Highlights

The 11th edition of The Barcelona Debates on the Human Microbiome successfully took place on June 26–27 in Barcelona. The international meeting gathered 224 participants and 21 distinguished speakers, including leading global experts, to explore the latest scientific advances and therapeutic potential of the human microbiota.

The program featured sessions on the Gut-Brain Axis, Diet and the Microbiome, Mucosal Inflammation and Chronic Disease, Microbiome at the Population Level, and recent scientific breakthroughs, complemented by 6 oral presentations and 46 scientific posters.

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The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome
The Barcelona Debates on the Human Microbiome

What they say about us

This was my first time attending this conference and I am very grateful for the opportunity to learn about the work of leading researchers in the field of the microbiota and the gut–brain axis, and to meet them in person. The experience has been incredibly valuable for my own research, and I will most likely attend again next year.
Anna Castells Nobau
Girona Biomedical Research Institute
One of the best aspects of The Barcelona Debates on the Human Microbiome was the incredible mix of speakers from different backgrounds—everyone could take away something directly useful for their own work.
Attendee from 2025 edition
Bioinformatician