Does ‘low salt’ advice cause harm?

Answer: A meta-analysis has suggested that changes in hormones and lipids induced by a low salt diet might reduce the antihypertensive benefits.

As this analysis involved short-term studies, the evidence for longer term effects has been reviewed.

The reviewers found 30 suitable reports about salt reduction involving 3230 people with a median age of 50.

Salt reduction was assessed by measuring the fall in urinary sodium. This

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