Dietary Recommendations for CKD Patients

Core Dietary Pattern

The American Society of Nephrology recommends that patients with CKD adopt a plant-dominant diet with protein intake of 0.8 g/kg/day, sodium restricted to <2 g/day, and adequate energy intake of 30-35 kcal/kg/day, with mandatory referral to a renal dietitian for individualized monitoring 1, 2
Emphasize plant-based foods over animal-based foods and minimize ultraprocessed foods, with a diet high in vegetables, fruits, whole grains, fiber, legumes, plant-based proteins, unsaturated fats, and nuts, while lower in processed meats, refined carbohydrates, and sweetened beverages 1, 2, 3, 4

Maintain protein intake at 0.8 g/kg body weight/day for metabolically stable adults with CKD stages 3-5, to slow GFR decline without compromising nutritional status 1, 2, 3, 6
Avoid high protein intake exceeding 1.3 g/kg/day, as this accelerates CKD progression, increases albuminuria, and raises cardiovascular mortality risk 1, 2, 3, 6
For patients at high risk of kidney failure, consider a very low-protein diet of 0.3-0.4 g/kg/day supplemented with essential amino acids or ketoacid analogs, under close supervision 1, 2, 3, 6, 7

For dialysis patients, increase protein to 1.0-1.2 g/kg/day to offset dialytic losses and catabolism 4, 7, 5
For older adults with frailty or sarcopenia, consider higher protein and calorie targets to prevent muscle wasting 1, 2, 3, 7
For children with CKD, do not restrict protein; target the upper end of normal range for age to promote optimal growth 1, 2, 3

Limit sodium intake to <2 g/day for all CKD patients, to control blood pressure and reduce cardiovascular risk 1, 4, 2, 3, 5

Ensure adequate caloric intake of 30-35 kcal/kg/day to prevent protein-energy wasting and maintain nitrogen balance 5

Refer all CKD patients to renal dietitians or accredited nutrition providers for individualized medical nutrition therapy, which is non-negotiable for successful dietary management 1, 4, 2, 3, 5, 6

Monitor nutritional status at 1-3 month intervals, including appetite assessment, dietary intake evaluation, body weight changes, biochemical markers, and anthropometric measurements 5, 7

Do not implement protein restriction without proper nutritional counseling and monitoring, as this significantly increases malnutrition risk 7, 6
Do not focus solely on protein restriction while ignoring overall diet quality, and address sodium, phosphorus, and potassium simultaneously, emphasizing plant-based food sources 7, 6, 1, 2