Physiological Mechanisms of Decreased Urine Output in Low Protein and Low Sodium Diets

Effect of Low Protein Diet on Urine Output

The National Kidney Foundation recommends protein restriction to 0.6-0.8 g/kg/day for CKD patients, which reduces urea generation and may contribute to decreased urine output 1, 2
Protein restriction to 0.6-0.8 g/kg/day may reduce urine output in CKD patients, and should be monitored 1, 3

The American Journal of Kidney Diseases recommends protein restriction to 0.6-0.8 g/kg/day for CKD patients, which may contribute to reduced urine output 1, 2, 3
Severe sodium restriction (<2.3 g/day) combined with protein restriction may further decrease urine output, and patients should be monitored for signs of fluid retention 3
Adequate caloric intake (approximately 35 kcal/kg/day) should be maintained when restricting protein to prevent malnutrition 1, 2, 4

Clinicians should be aware of the potential for decreased urine output when implementing protein restriction in CKD patients, and monitor fluid status 1, 3
Monitoring of fluid status is important in patients on combined low protein and low sodium diets, to manage fluid balance 4