Isotopic methods have provided breakthrough insights into bioarchaeological identity studies, yet merit more critical theoretical perspectives. Inspired by and in conversation with intersectional feminist, Indigenous, and environmental literatures, we interrogate with and for whom such research is conducted. Potential inequities in bioarchaeological research using isotopes include the extractive and specialized nature of isotopic methods. Additionally, in the context of identity studies, Western notions of the individual may separate humans from nature, creating an artificial division between people and place. We propose isotopic baselines may create a more engaged practice by considering living human dynamics and place. Looking toward a more inclusive and equitable future for bioarchaeological and isotopic research, we propose ways to reduce power imbalances created by isotopic research. Ultimately, we suggest the collection and interpretation of environmental baseline data provide an opportunity to reconcile and expand conceptualizations of identity beyond the West.