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Excessive salt intake is associated with a higher population-based risk for hypertension and coronary heart disease. Current daily mean salt intakes in the U.S. — three quarters of which come from processed foods — are 10.4 g for men and 7.3 g for women (roughly twice the recommended levels). Researchers used validated models for predicting CHD and stroke to estimate benefits that would accrue from lowering salt intake in adults. The investigators assumed that a linear benefit would accrue from lowering daily salt intake by as much as 3 g and that benefits would be accentuated for blacks, people with hypertension, and elders (age, ≥65).
Lowering daily salt intake by 3 g was estimated to attenuate the annual incidence of CHD by 60,000 to 120,…