It is not usual to use care without consent in the management of eating disorders when the patient refuses the care indicated. Yet, these are psychiatric disorders responsible for a high mortality rate and a high risk of chronicity. Their management is complex, multidisciplinary and the refusal of care in the most severe cases raises ethical questions. It is important for the clinician to know the impact of these disorders, notably on the patient's cognitive and judgment capacities, in order to evaluate the necessity of implementing a restraint measure.