The current trial investigates the effect of renal diet therapy and nutritional education on the estimated glomerular filtration rate (eGFR), blood pressure (BP) and depression among patients with chronic kidney disease (CKD). A total of 120 CKD patients (stages 3-4) (15P < 0·001). Moreover, serum levels of Cr and the systolic and diastolic BP decreased significantly in the intervention group relative to the control group (P < 0·001, P < 0·001 and P = 0·020, respectively). The nutrition intervention also hindered the increase in the BUN level and the depression score (P = 0·045 and P = 0·028, respectively). Furthermore, the reduction in protein and Na intake was greater in the intervention group (P = 0·003 and P < 0·001, respectively). Nutritional treatment along with supportive education and counselling contributed to improvements in renal function, BP control and adherence to protein intake recommendations. A significant difference in the mean eGFR between the groups was also confirmed at the end of the study using ANCOVA (β = -5·06; 95 % CI (-8·203, -2·999)).

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