Dr Tanya M. Cassidy is an Assistant Professor in the School of Nursing and Health Sciences at Dublin City University, an affiliated senior researcher with the Department of Anthropology at Maynooth University, and a Visiting Fellow at the University of Central Lancashire in the Maternal and Child Nutrition and Nurture unit, where she held her EU Horizon 2020 Marie Sklodowska Curie Award. As a Fulbright-HRB Health Impact Scholar, she will extend her ethnographic research on the potentiality of mothers’ milk, borders and bioscience at the Department of Anthropology in the Massachusetts Institute of Technology.