Management of Protein Energy Wasting in Chronic Kidney Disease
Core Nutritional Management Strategy
- The National Kidney Foundation recommends maintaining 0.8 g/kg body weight/day of protein for non-dialysis CKD G3-G5 patients who are metabolically stable 2, 3
- The European Society of Parenteral and Enteral Nutrition suggests increasing protein intake to 1.2-1.5 g/kg/day for CKD patients on conventional intermittent hemodialysis to offset dialysate amino acid losses 5
- The American Society of Nephrology recommends targeting 1.5-1.7 g/kg/day of protein for critically ill CKD patients on continuous renal replacement therapy, potentially up to 2.0-2.5 g/kg/day to achieve positive nitrogen balance 5
- The International Society of Renal Nutrition recommends avoiding low or very low-protein diets (<0.6 g/kg/day) in metabolically unstable patients with PEW, as this will worsen protein depletion 2, 3
- The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines suggest targeting 25-35 kcal/kg/day to maintain positive energy balance and prevent protein catabolism for energy 1, 7
Special Population Considerations
- The American Geriatrics Society recommends considering higher protein and calorie targets than standard CKD recommendations for older adults with frailty or sarcopenia to prevent muscle wasting 2, 3
- The European Society for Pediatric Nephrology recommends not restricting protein intake for children with CKD, and instead targeting the upper end of the normal range for healthy children to promote optimal growth 2, 3
Correcting Metabolic Disturbances
- The National Kidney Foundation recommends normalizing serum bicarbonate to at least 23 mEq/L in dialysis patients and to the normal range in non-dialysis CKD patients to reduce protein catabolism and muscle breakdown 1
Nutritional Supplementation Strategies
- The American Society for Parenteral and Enteral Nutrition recommends using oral nutritional supplements as the first-line treatment for patients who cannot maintain adequate nutritional status through regular meals 1
- The European Society of Parenteral and Enteral Nutrition suggests using enteral feeding via nasogastric or gastrostomy tube for patients who are unable to meet their needs orally 1
Anabolic Interventions
- The American College of Sports Medicine recommends prescribing structured resistance and aerobic exercise to stimulate muscle protein synthesis and reduce catabolism 1, 2
- The Endocrine Society suggests considering anabolic steroids, growth hormone, and appetite stimulants as pharmacologic anabolic agents when nutritional interventions alone are insufficient 1