Hardly Anyone Uses Simple Fix for High Blood Pressure
A new analysis of nearly 20 years of national health data has revealed that despite strong evidence, very few Americans use salt substitutes to lower sodium intake and reduce high blood pressure. According to the American Heart Association (AHA), usage peaked at just over 5% in 2010 but declined thereafter, even among those with hypertension.
Researchers say this represents a major missed opportunity to improve heart health, especially since salt substitutes are inexpensive and effective. "This is a surprising finding, given the overwhelming evidence that salt substitutes can safely lower sodium intake and reduce high blood pressure," said Dr. Rachel Huxtable, lead author of the study presented at the AHA's Hypertension Scientific Sessions 2025.
The analysis, which examined data from over 10 million adults in the United States, found that only about 4% of those with hypertension used salt substitutes in 2020. This is despite the fact that high blood pressure affects nearly half of all American adults and is a leading cause of heart disease, stroke, and kidney disease.
According to Dr. Huxtable, "The lack of awareness and adoption of salt substitutes is particularly concerning given their proven benefits. We need to do more to educate healthcare providers and patients about the importance of reducing sodium intake through simple changes like using salt substitutes."
Background research has shown that excessive sodium consumption can lead to high blood pressure, which increases the risk of cardiovascular disease. Salt substitutes, such as potassium chloride or magnesium chloride, are designed to reduce sodium intake while maintaining flavor.
The AHA recommends that adults limit their daily sodium intake to less than 2,300 milligrams and further reduce it to 1,500 milligrams if they have high blood pressure, kidney disease, or other cardiovascular conditions. However, the organization notes that only about 10% of Americans meet these recommendations.
Additional perspectives from experts in the field highlight the importance of addressing this issue. "This study highlights the need for a more comprehensive approach to reducing sodium intake and managing high blood pressure," said Dr. Maria Rodriguez, a cardiologist at the University of California, Los Angeles. "We need to work together to educate healthcare providers, patients, and policymakers about the benefits of salt substitutes and other evidence-based interventions."
The current status of salt substitute usage remains low, with only a small percentage of Americans using them. However, researchers are optimistic that increased awareness and education can lead to greater adoption and improved heart health outcomes.
As Dr. Huxtable noted, "We believe that by promoting the use of salt substitutes and other evidence-based interventions, we can make a significant impact on reducing high blood pressure and improving cardiovascular health in the United States."
Sources:
American Heart Association (AHA)
National Health and Nutrition Examination Survey (NHANES)
Hypertension Scientific Sessions 2025
Related Stories:
"High Blood Pressure Affects Nearly Half of All American Adults" (American Heart Association, 2020)
"Reducing Sodium Intake Can Lower High Blood Pressure" (Journal of the American College of Cardiology, 2019)
*Reporting by Sciencedaily.*