Feasibility and antihypertensive effect of replacing regular salt with mineral salt -rich in magnesium and potassium- in subjects with mildly elevated blood pressure
2011

Replacing Regular Salt with Mineral Salt to Lower Blood Pressure

Sample size: 45 publication Evidence: moderate

Author Information

Author(s): Essi Sarkkinen, Mika J. Kastarinen, Tarja H. Niskanen, Pia H. Karjalainen, Taisa M. Venäläinen, Jay K. Udani, Leo K. Niskanen

Primary Institution: University of Eastern Finland

Hypothesis

Replacing Smart Salt for regular salt covering at least 50% of dietary sodium sources in a diet would lead to a 3 to 5 g reduction in sodium intake and consequently a lower SBP.

Conclusion

Replacing regular salt with Smart Salt significantly reduced daily sodium intake and systolic blood pressure in subjects with mildly elevated blood pressure.

Supporting Evidence

  • 24-hour urinary sodium excretion decreased significantly in the Smart Salt group.
  • Replacement of NaCl with Smart Salt resulted in a significant reduction in systolic blood pressure over 8 weeks.
  • Subjects in the Smart Salt group had a 3.3 g difference in sodium intake compared to the control group.

Takeaway

Using a special salt that has less sodium and more potassium and magnesium can help lower blood pressure.

Methodology

A randomized, double-blind, placebo-controlled study with an 8-week intervention period.

Limitations

The sample size was relatively small, and results need to be verified with a larger sample size.

Participant Demographics

Subjects were aged 25-75 years with mildly elevated blood pressure.

Statistical Information

P-Value

p = 0.012

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1475-2891-10-88

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