Benefit of low-salt diet for heart failure uncertain

Cardiologist 'incredulous' at lack of evidence for 'bedrock recommendation'

Although many doctors advise heart failure patients to follow a low-salt diet to help minimise complications, a new study shows high quality evidence is lacking to support this recommendation.

Dr Kamal Mahtani (PhD) and colleagues performed a systematic review of all the randomised controlled trials (RCTs) of reduced-salt diets for heart failure that they could find in a literature search. They found nine RCTs involving a total of 479 patients. All studies had fewer than 100 patients.

"We found no clinically relevant data on whether

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