AbstractThis paper examines the moral struggle of family care by focusing on parents’ efforts to raise “healthy” children in irradiated environments of Fukushima following the 2011 Fukushima Daiichi nuclear disaster. Drawing on fieldwork between 2017 and 2020, it explores the lived experiences of primary caretakers, mostly mothers, as they strive to cultivate “health” in their children while negotiating conflicting logics of radiological exposure, risk assessment, and gendered childcare. Central to this endeavor is what I call an ethical labor of “balancing:” the daily negotiation between protecting children and allowing them to live fully in risk‐laden environments. Emphasizing intercorporeal and interpersonal aspects of embodied care, the paper examines the nuanced ways in which three mothers recalibrate notions of health, personhood, and responsibility to safeguard their children's everyday lives. Such notions of “health” carry significant implications for family dynamics amid the uncertainties of postdisaster life. By highlighting the critical role of family care in potentially stigmatizing environments, the paper advocates for developing frameworks that address the real‐life complexities of making life in an increasingly compromised world.