["Renal" narratives: communication, education and sociality in a health podcast].

This article presents an ethnographic study of the narratives of people with chronic kidney disease about their experiences of illness, which is shared through the podcast entitled "Renalcast: talking about renal life." Using a qualitative approach, the content of the episodes of the first season of Renalcast was analyzed, as well as its promotional material on social networks and, lastly, interviews were conducted with the creators of the project. The research stages made it possible to examine the logic and meanings attributed to the disease, the podcast itself, care practices, and the knowledge of both patients and health professionals. In these dimensions, narrative construction entails a form of dual legitimacy, as it performs a position grounded simultaneously in experience and expertise. The project functions as a tool for health education aimed at the care of people living with a diagnosis of chronic kidney disease and as a space for communication and reciprocal exchange. The results indicate that key podcast features - such as mobility, informal communication, and proximity to the listening audience - were fundamental to the development of "renal" narratives.