Excessive sodium intake and inadequate potassium intake are well-established key drivers of high blood pressure,
said Bruce Neal, a senior researcher at The George Institute in India.
Replacing regular table salt with potassium-enriched salt could prevent approximately 3 million deaths and 10 million new cases of cardiovascular and kidney disease globally each year. New research published on November 6 by The George Institute for Global Health in Australia evaluated this public health solution across 193 countries.
The findings show that replacing even a portion of daily salt consumption yields substantial health benefits worldwide. High blood pressure remains a primary risk factor for life-threatening conditions including stroke, heart attack, and kidney disease.
Potassium-enriched salt replaces a portion of the sodium chloride in regular salt with potassium chloride. The product looks, tastes, and functions similarly to regular table salt so consumers do not need to alter their cooking habits.
May Bakir, founder of InfiniteHeart Health, stated that swapping sodium for potassium helps control blood pressure through two distinct mechanisms.
Lowering sodium intake limits water retention in the body, while increasing potassium helps the kidneys excrete sodium and promotes blood vessel dilation. Bakir noted that using this salt typically begins lowering blood pressure within a few weeks, with tests recording reductions within one to three months.
The World Health Organization recommended using potassium-enriched salt in 2025 as a measure to lower blood pressure and reduce cardiovascular disease risks. Cardiovascular disease remains a leading global cause of death and disability. Approximately 1.4 billion adults aged 30 to 79 currently live with high blood pressure, representing nearly one-third of the global population in that age group.
Researchers examined multiple implementation strategies, ranging from replacing salt used in home cooking to altering the sodium content in processed foods and restaurant meals. Some scenarios focused specifically on individuals diagnosed with or receiving treatment for hypertension. The study indicated that introducing substitutes simultaneously at home and within the food industry produces the greatest impact.
Potassium-enriched salt is unsuitable for everyone, as experts warn that individuals with severe kidney disease who struggle to eliminate excess potassium from their bodies face risks from increased intake. Cost presents another obstacle to widespread adoption. While considered a relatively inexpensive product, potassium-enriched salt remains more expensive than standard salt, which may discourage food manufacturers from making the switch.
Neal stated that reducing the price of potassium-enriched salt to match the cheapest regular salt requires scaling up production and advancing technology. Governments might also consider regulations that encourage or mandate the use of this salt, similar to the iodine fortification policies implemented in many countries for table salt.
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