This article employs Oceanic epistemological theories to explore the body as a site of knowledge production among Samoan Pentecostal women as they dance in a church‐sponsored Zumba session, tracking foods, words, and feelings: I call these moving materialities. In their work together, these women contextualized health, sickness, and weight as generated from the circulation of these kinds of moving materialities. Their work theorizing health through material change is quite different from those imagined and circulated in the literatures on diabetes and obesity. The article orients critical studies of health toward an interrogation of the dynamic qualities of materiality, including both the moving body and materials that move between or within bodies. By expanding what might be considered material and movement in the context of health, this article offers an alternative to theories of metabolism that have come to dominate how we understand the body in terms energy expenditure. Ultimately, this approach calls for anthropologists to consider the circumstances in which theory is understood to be “culturally specific” or “generalizable.”