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[Correspondence] Urinary sodium excretion measures and health outcomes

30 Mar 2019

We were disappointed to see yet another re-analysis, by Andrew Mente and colleagues (Aug 11, 2018, p 496),1 of the Prospective Urban Rural Epidemiology (PURE) study on salt, despite its many flaws. Mente and colleagues claimed that reducing salt is only justified in countries where intake is greater than 12·5 g/day, challenging WHO's recommendation to reduce salt intake to less than 5 g/day. These conclusions are not valid because of the inaccurate estimation of salt intake from spot urine using the Kawasaki formula, which has been repeatedly shown to be unreliable and systematically biased.

Click here to view the full article which appeared in The Lancet