Does potassium-enriched salt substitute lower blood pressure and reduce heart events in elderly people?

This conclusion is based on 68 studies or assertions that support this pattern, with none that contradict it. The effect appears consistent across the group studied — primarily elderly individuals living in institutional care settings. The salt substitute replaces some sodium chloride with potassium chloride, which may help balance the body’s electrolytes in a way that supports healthier blood pressure.

We don’t know if these results apply to all older adults living independently or those with certain medical conditions, like kidney disease, because the evidence we’ve reviewed focuses on care home populations. We also don’t know how long the benefits last beyond the study periods, or whether the effect remains strong if people don’t stick with the substitute over time.

Still, what we’ve found so far suggests that for older adults in care homes, this simple dietary swap could be a low-risk way to support heart health without requiring major lifestyle changes. It’s not a cure, and it doesn’t replace other medical care — but it may be one small step that adds up.

If you or someone you care for is elderly and on a high-sodium diet, talking to a doctor about trying a potassium-enriched salt substitute might be worth considering — especially if blood pressure is a concern.