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Potassium-Enriched Salt Substitutes

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A Promising Strategy for Reducing High Blood Pressure Risk in Older Adults

High blood pressure, or hypertension, is a prevalent health concern worldwide, increasing the risk of heart disease and stroke. One significant contributor to hypertension is excessive sodium intake, making salt reduction a crucial preventive measure. Recently, a study investigated the effectiveness of potassium-enriched salt substitutes in mitigating high blood pressure risk, particularly among older adults.

Study Overview

The study involved 611 participants aged 55 or older residing in 48 long-term care facilities in China. These individuals, without prior hypertension medication, were randomly assigned to either use a potassium-rich salt substitute or regular salt. The salt substitute, containing reduced sodium chloride and 25% potassium chloride, aimed to mimic the taste of sodium without its adverse effects. Additionally, flavorings such as mushroom, lemon, seaweed, hawthorn, and wild jujube were incorporated.

Key Findings

After a two-year follow-up period, participants using the salt substitute exhibited a remarkable 40% decrease in the risk of developing high blood pressure compared to those using conventional salt. Equally significant, the use of salt substitutes did not elevate the risk of low blood pressure episodes, crucial for older adults susceptible to falls and injuries due to hypotension.

Implications and Limitations

The study's outcomes highlight the potential of potassium-enriched salt substitutes as a preventive strategy against hypertension, especially in vulnerable populations like older adults. However, certain limitations, such as unspecified study outcomes beforehand and missing data for some participants, necessitate further research, particularly focusing on individuals with existing hypertension.

Alternative Sodium Reduction Strategies

While salt substitutes offer a promising avenue, other approaches can complement sodium reduction efforts. These include vigilant label reading, opting for low-sodium products, and leveraging flavorful ingredients like herbs and spices in cooking. Collaborative efforts among public health authorities, food manufacturers, and consumers, alongside education campaigns and policy initiatives, are vital for promoting wider adoption of salt substitutes and other low-sodium options.


In conclusion, potassium-enriched salt substitutes emerge as a valuable tool in combating hypertension, offering a means to reduce sodium intake without compromising taste. While more research is warranted, their potential benefits, coupled with complementary sodium reduction strategies, hold promise for improving cardiovascular health, particularly among older adults.


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