Comment le microbiote agit-il sur notre santé ?

It is made up of hundreds of billions of microorganisms: bacteria, viruses, yeasts. It resides in our intestines and interacts with our brain. The microbiota fascinates doctors and researchers, and understandably so. Indeed, it is a delicate balance that can explain certain digestive diseases, certainly, but also inflammatory or neurological ones. To treat various pathologies, the idea is to modify it or

even transplant it. Yes, salt donation exists and has already proven its effectiveness. When is this microbiota established in our body? Why is its presence necessary for our own? Does diet influence its composition? What diseases could we avoid by paying attention to it? And what is a fecal transplant? Who is the donor? Who is the recipient? What is

the future of this procedure? To answer all these questions, Professor Harry Sococo, hello, hello. You are a professor of gastroenterology at Saint-Antoine Hospital, a lecturer at the Sorbonne University Faculty of Medicine, director of the fecal transplant center at PHP. Researchers Aline Serme and Aline, that's good, there aren't any other things that are... Hidden? No, that's pretty much it.

But you're also the author of the graphic novel *The Extraordinary Power of the Gut: A Fabulous Journey to the Heart of Our Microbiota*, published by Becc Supérieur. It's a fabulous journey, a truly fabulous book—you should really give it as a gift because it's absolutely fascinating. So, before we embark on this journey to the heart of the microbiota,

could you remind us exactly what it is? Yes, of course. Well, the gut microbiota is the collection of microorganisms—bacteria, fungi, viruses—that colonize our digestive tract from birth. And we ultimately provide these microorganisms with shelter and food, and in return, they provide us with numerous services for our health. These are the same inhabitants throughout the