In most settings, the majority of dietary sodium never passes through a salt shaker. It arrives in bread, processed meats, sauces, stock cubes and restaurant food. Advice built on the shaker addresses the smaller share of the problem.
Population approaches
Reformulation targets, front-of-pack labelling and procurement standards for schools and hospitals shift intake without requiring any individual to change behaviour. These are slow, unglamorous, and among the most cost-effective nutrition interventions available.
Individual counselling that works
Focus on the highest-sodium items in that person's actual diet rather than a generic list. Substituting one daily processed item usually beats a lecture on seasoning.
Salt substitutes
Potassium-based substitutes lower blood pressure at population level, but they are not appropriate for everyone — advanced kidney disease and certain medications make them unsafe. Screen before recommending.
Watch the discretionary-salt trap
Telling someone to remove the salt shaker while their daily bread and sauces go unexamined produces disappointment and blame. Name the real sources first.
Measuring progress
Spot urine estimates are convenient and imprecise; 24-hour urine collection remains the reference standard. Choose based on whether you need individual accuracy or population trend.
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