Several bioethicists have recently advocated the force-feeding of prisoners, based on the assumption that prisoners have reduced or no autonomy. This assumed lack of autonomy follows from a decrease in cognitive competence, which, in turn, supposedly derives from imprisonment and/or being on hunger strike. In brief, causal links are made between imprisonment or voluntary total fasting and mental disorders and between mental disorders and lack of cognitive competence. I engage the bioethicists that support force-feeding by severing both of these causal (...) links. Specifically, I refute the claims that VTF automatically and necessarily causes mental disorders such as depression, and that these mental disorders necessarily or commonly entail cognitive impairment. Instead, I critically review more nuanced approaches to assessing mental competence in hunger strikes, urging that a diagnosis of incompetence be made on a case-by-case basis—a position that is widely shared by the medical community. (shrink)