Chemosensory disorders may result in loss of body weight and sometimes in gain of body weight. Therefore, dietary advice is an essential part of the counselling and treatment ofpatients with a chemosensory disorder. In cases involving a chemosensory disorder, a distinction has to be made between general dietary advice and advice during and after a patient's period of chemotherapy or radiotherapy. The aim of dietary advice is the improvement ofa patient's nutritional condition and the patient's well-being. In case of serious problems related to dealing with a chemosensory disorder, psycho-social counselling may be considered.