Malnutrition may affect 80% of patients with advanced cancer and is associated with up to 20% of deaths, with an increased risk in the development of complications and mortality and can extend the hospital stay up to 90%, increasing the cost of treatment in a 35-75%. Similarly, in a previous study at INCan, the degree of malnutrition in patients with LC was associated with cytotoxic chemotherapy toxicity and poorer prognosis and poorer quality of life. Sarcopenia is also a phenomenon commonly observed in patients with LC, there has been a prevalence of 61% and 31% in men and women respectively.