Key result
Self-reported low-salt diet is linked to modestly lower sodium excretion, though intake remains above targets.
Why the study?
Little is known about the actual achievement of reduced salt diet (RSD) in populations despite recommendations to reduce salt intake to prevent cardiovascular risks.
Does a self-reported reduced salt diet reduce actual daily sodium intake in adults aged 40-59?
Observational (n=4,680)
Yes
Does a self-reported reduced salt diet reduce actual daily sodium intake in adults aged 40-59?
Self-reported efforts to reduce salt intake are uncommon and generally insufficient to achieve recommended sodium intake levels, highlighting the need for population-level interventions.
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Self-reported reduced-salt diet showed no meaningful sodium reduction; leaves open need for objective monitoring in both practice and trials.
Okuda et al. (2014) conducted an observational in Diet and blood pressure (n=4,680). Self-reported reduced salt diet (RSD) vs. No reported reduced salt diet was evaluated on 24-h dietary sodium intake. Self-reported reduced salt diet was associated with modestly lower 24-h urinary sodium excretion in Japan, China, and the USA (by 14.7 to 56.7 mmol/day), but intakes remained above recommended levels.
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