From Eric Kvaalen, Les Essarts-le-Roi, France
Anthony Warner assures us that the conventional advice to limit salt intake to 6 grams a day is still valid (23 September, p 24). But Â鶹´«Ã½ has told us of a study involving 130,000 people that found that consuming less than about 7.5 grams a day was linked to higher mortality (28 May 2016, p 7). It found that high salt intake was only harmful for those with hypertension (The Lancet, ). This certainly goes against the conventional wisdom.
Article amended on 20 October 2017
We corrected the salt intake below which deleterious effects were observed.
