A major challenge for those living with cancers of the upper gastrointestinal tract (oesophagus, stomach and pancreas), is the impact of the disease and treatment on nutritional status and quality of life. People with cancer and malnutrition have a greater risk of morbidity and mortality. | Effect of early and intensive nutrition care delivered via telephone or mobile application on quality of life in people with upper gastrointestinal cancer Study protocol of a randomised controlled trial