Integrative Parenteral Nutrition in Cancer Patients

Patients will receive a tailored nutritional support (parenteral nutrition) to cover estimated protein-calorie requirements. Energy: resting energy expenditure \[Harris-Benedict\] multiplied by a factor of 1.5. Protein: 1.5 g/kg/day. In obese patients (BMI \>30 kg/m2) support will be calculated on ideal body weight (BMI=23 kg/m2)