Effect of a sardine supplement on C-reactive protein in patients receiving hemodialysis.

Objective: The study evaluated the effect of a canned sardine supplement in C-reactive protein (CRP) in patients on hemodialysis (HD) and the compliance and adherence to this supplement.

Design: This was a quasi-experimental study: Participants with a serum CRP of 5 mg/dL or less volunteered to consume a sardine supplement or were maintained on the usual cheese/ham sandwich supplement.

Setting: The study took place in two outpatient dialysis units in Lisbon, Portugal.