New Study Suggests Salt Substitute Can Lower Risk of High Blood Pressure
A recent study published in the Journal of the American College of Cardiology has found that reducing salt intake by using a salt substitute may lower the risk of developing high blood pressure. The study analyzed data from 157 women and 454 men in elder care facilities in China, who were given either food with the usual amount of salt or food with a salt substitute.
Researchers discovered that cutting back on salt by over a third, using a mineral supplement called potassium chloride, along with other flavorings like mushroom and lemon, was protective against high blood pressure. The senior author of the study, Dr. Yangfeng Wu, believes that these findings can be applied to people in other countries, including the US.
High blood pressure can increase the risk of chronic diseases such as heart and kidney disease, diabetes, and dementia. Shockingly, Americans consume too much salt, with the average intake being approximately 3,500 milligrams per day. In contrast, the Food and Drug Administration (FDA) recommends that healthy adults consume less than 2,300 milligrams of salt (about a teaspoon) per day.
Potassium chloride, which acts like table salt without the harmful sodium, can be used as a substitute. While salt substitutes have previously shown to lower blood pressure among people with hypertension, this study extended the effect to individuals with normal blood pressure. Dr. Deepak Gupta, an associate professor of medicine, believes that having a diet rich in potassium can help lower blood pressure, as Americans generally have a low potassium intake.
In the United States, various types of salt substitutes can be purchased to replace or partially replace table salt. However, many people struggle to lower their salt intake long-term without finding a satisfying substitute. It is important to consult doctors before increasing potassium intake, especially for individuals with conditions like kidney disease that may lead to high potassium levels.
The study’s overall message is clear: limiting salt in the diet can bring down blood pressure, which is crucial for heart health. Dr. Michelle Bloom, a cardiologist, emphasizes the need for individuals to be aware of the salt content in their food and explore alternative flavors like spices and lemon juice. Lowering blood pressure, even by a small amount, can significantly reduce the risk of heart attack, heart failure, and stroke.
Correction: An earlier version of this article misstated the FDA’s recommendation for daily sodium intake. It should be less than 2,300 milligrams of salt per day, equivalent to about a teaspoon.