Eric C. Ip has recently argued that seriously anorexic service users ought to be assumed to be legally incapacitous to refuse life-saving artificial nutrition unless they can demonstrate otherwise, reversing the ordinary legal presumption in place to protect patients' liberty and values. In this response, I argue against this proposal on two grounds. Firstly, the proposal is wrongfully discriminatory; it would expose service users to serious harm, and wrong them in numerous ways, on the basis of their diagnosis alone, without significantly benefitting them in any way relative to the status quo. Secondly, he is unable to show that a large majority of such service users actually are incapacitous to refuse life-saving artificial nutrition. This means that his proposal would likely involve declaring a large number of actually capacitous patients to be incapacitous, without even the requirement of a formal assessment, and burdening them with the responsibility of proving their clinical team wrong if they wish to avoid deprivation of liberty and/or compelled treatment. Given this, his proposal is indefensible. © 2021 John Wiley & Sons Ltd.