Eating Less Salt Could Raise Your Risk of Heart Disease, Says Study

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By Gillie Houston Posted May 23, 2016

A new study suggests that a low-salt diet could actually increase the risk of health issues.

Before you chuck your salt shaker for fear of sodium's health consequences, you should consider a new study from Ontario, Canada's McMaster University. Researchers found that contrary to the long-held public perception of salt's negative effects, a low-salt diet may not be beneficial for your health after all—and might even have its own grave consequences. While other recent studies have suggested salt isn't as bad for you as previously thought, this study suggests that a low-salt diet could actually increase the risk of health issues such as heart disease.

The large-scale study by the university's Population Health Research Institute involved more than 130,000 people from 49 countries, and looked at the relationship between sodium intake and stroke, heart disease and death. The researchers particularly focused on the differences between people with high blood pressure compared to those with normal blood pressure when it came to the effects of salt on the body.

The results showed that regardless of a person's blood pressure level, a low sodium intake was in fact linked with more heart attacks, strokes, and deaths compared to an average intake, Science Daily reports.

According to Dr. Andrew Mente, associate professor at the McMaster's School of Medicine and lead author of the study, "these are extremely important findings for those who are suffering from high blood pressure," who might be unnecessarily lowering their daily sodium targets.

While the study did find that reducing high salt intake is beneficial for people with hypertension, the results do "not support reducing salt intake to low levels." Regardless of a patient's hypertension status, the risks associated with low sodium intake are consistent across the board.

"This study adds to our understanding of the relationship between salt intake and health, and questions the appropriateness of current guidelines that recommend low sodium intake in the entire population," says study co-author Dr. Martin O'Donnell. In other words, it's probably OK to add that extra pinch of salt to your dinner tonight.

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