Huh? Low-Salt diet ups risk of fatal Heart Attack?
Low salt intake may increase risk of dying from heart attack or stroke,- study says....
New study "*do not support* the current recommendations of a generalized and indiscriminate reduction of [salt] intake at the population level."
"The assumption that lower salt intake would in the long run lower blood pressure, to our knowledge, has not yet been confirmed in longitudinal population-based studies, -" Dr Jan A Staessen (University of Leuven, Belgium).
Dr. Staessen says that previous studies on which recommendations to lower salt intake are based "are all short-term, controlled intervention trials, in which there are reductions in blood pressure in hypertensive patients and a small decrease in BP in normotensive volunteers" with salt reduction, and "these studies have been extrapolated to the population as a whole."
#Doctors and public health officials have been telling us for years that eating too much salt can increase the risk of #heart_attack or #stroke by raising blood pressure to unsafe levels.
"We are not negating previous studies, and I think sodium restriction is meaningful for patients who already have #hypertension* and perhaps for patients with heart failure, but there are very few arguments showing that reducing salt intake in the general population would result in substantial benefit, -" Dr Jan A Staessen (University of Leuven, Belgium) told.
So how to explain a new #study that suggests low #salt intake actually increases the risk of dying from those causes?
The findings, reported in the May issue of the Journal of the American Medical Association (#AMA), certainly seem #counterintuitive, especially in light of the ongoing public-health campaign to lower sodium consumption across the U.S. by urging restaurants and food manufacturers to curtail their use of the ingredient.
The researchers suggest that salt intake low enough to decrease blood pressure may also decrease sensitivity to insulin, encourage a stress response in the nervous system, and affect hormones that regulate blood pressure and sodium absorption. "Each of these effects might have *unfavorable impact on cardiovascular mortality," Staessen says.
Information and image credit: medscape.com, cnn.com, greenmedinfo