Cancer patients often have difficulty maintaining their diet and nutritional intake. Changes in their sense of smell and taste caused by chemotherapy can be one of the causes of this. Patients undergoing chemotherapy often experience food aversions. These aversions can be caused by changes in smell and taste. Chemotherapy can also cause food aversions against the food the patient ate in the hospital on the day of treatment (Bernstein, 1978; Boltong and Keast, 2012). Patients may continue to associate this disturbed taste with the treatment, allowing these food aversions to persist in the months following treatment. Changes in smell and taste not only affect appetite and eating behaviour, but also affect quality of life. Changes in smell and taste limit the patient's self-sufficiency. In social situations, changes in smell and taste can cause various problems. For example, eating out can be experienced as unpleasant, as can eating in a family situation (de Vries et al., 2016). It is important to discuss the symptoms and their effects on daily life with the patient and to involve the patient's environment in this (Postma et al., 2017).