The increasing pervasiveness of digital technologies and apps has radically transformed the way bodies are observed, quantified and categorized. This appointment explores the processes of body datafication, that is, the translation of physical experiences and identities into digital data, focusing on the dynamics of economic and symbolic value production that these processes generate. Through critical analysis of applications that monitor health, fitness, performance and everyday behaviors, we will discuss how digital practices not only reflect but also redefine social norms and bodily categorizations. Data generated by bodies are mined, aggregated and monetized, turning users into unwitting producers of value for platforms and creating new forms of exclusion and marginalization, which particularly affect bodies that deviate from socially defined and codified standards of "normality." The narratives that accompany these processes help shape cultural meanings related to the body, health, and performance. Let's find out how to understand and deconstruct the power mechanisms at work in body datafication