One cited
study, which attributes stroke to excessive salt intake, is a meta - analysis of thirteen
studies published between 1966 and 2008 in which most measurements of sodium intake were highly inaccurate estimates based on food frequency questionnaires.22 The second is a review of fifty - two
studies, which concluded that strokes are not caused by excess sodium but rather by insufficient potassium, a finding that is consistent with the preponderance of evidence.23 Cordain ignores more
recent large clinical and
epidemiological studies, which have found that sodium intakes of less than 3 grams per day significantly increase cardiovascular risk.3, 4