Protein intake in renal disease.

Journal of the American Society of Nephrology : JASN
C A PollockJ F Mahony

Abstract

The dietary protein intake (DPI) of 766 patients (aged 7 to 88 yr) was determined from 24-h urinary urea and protein excretion by urea kinetic modelling. Five hundred sixty-five patients had a normal serum creatinine concentration, and of these 565, 385 patients had no dietary modification advised and 180 were advised to follow a low-protein diet. The remaining 201 patients had an increased serum creatinine concentration; 148 of these 201 patients had been advised to restrict their DPI. Patients with a normal serum creatinine concentration who had no dietary restriction had a significantly higher DPI than those advised to restrict their protein intake (1.08 +/- 0.01 versus 0.96 +/- 0.02 g/kg per day (mean +/- SEM), P < 0.01). Similarly, patients with abnormal renal function who were advised to follow a low-protein diet had a reduced DPI (0.93 +/- 0.01 versus 0.87 +/- 0.02 g/kg per day; P < 0.05). A lower DPI correlated with level of renal dysfunction, independent of dietary advice (P < 0.0001). In the overall population, DPI correlated with body mass index (BMI; P < 0.0001) and serum albumin (P < 0.0001), and inverse correlations were evident between age (P < 0.0001), blood glucose level (P < 0.01), serum cholesterol level (P <...Continue Reading

Citations

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