The overall objective of the study is that it must be orientated towards clinical significance, so that it can be implemented in clinical practice, thus benefit patients with cancer. The short-term goal is that the patients in this trial experience positive effects in terms of increased appetite and quality of life. Positive effects may contribute to increased research into this area thus resulting in improved evidence. In the longer term, the aim is that the results from this study may contribute to a treatment protocol on malnutrition recommending the use of medical cannabis based on high scientific evidence, so a larger group of patients with cancer may benefit. The results from the study may be used for recommendations on doses, side effects and likely beneficial effects when administer medical cannabis. The metabolomics analysis can contribute to a improved understanding of the cancer cachexia pathophysiology and management in a more experimental matter.