If you swap regular table salt for a salt substitute that has more potassium, it might lower your chance of having a stroke by about 14%.
Evidence from Studies
Supporting (2)
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Rationale, design, and baseline characteristics of the Salt Substitute and Stroke Study (SSaSS)-A large-scale cluster randomized controlled trial.
This study gave people a special salt with less sodium and more potassium to see if it would cause fewer strokes — and it was designed specifically to find out if stroke risk drops by about 14%. So if the results show a drop like that, it proves the claim right.
The contribution of sodium reduction and potassium increase to the blood pressure lowering observed in the Salt Substitute and Stroke Study
This study tested swapping regular salt for a salt that has more potassium and less sodium, and found that it helped lower blood pressure and reduced strokes — exactly what the claim says.
Contradicting (0)
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Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.