Is Salt Restriction Necessary?

The last few years have seen another push for restriction of salt consumption as a public health measure.  But one large study linked lower salt intake with increased risk of heart attacks, strokes, and death from all causes.

The idea behind salt restriction is that it will lower blood pressure, thereby reducing the risk of heart attacks and strokes, which are linked to high blood pressure.  Salt restriction does tend to lower blood pressure modestly in some folks, but that doesn't necessarily translate into better health and longevity.






Can you say, "law of unintended consequences"?

 "Sodium" is how most doctors and nutritionists measure and refer to salt intake.  Salt is a combination of one sodium and one chloride atom.  Your table salt is called sodium chloride.  The Institute of Medicine in 2003 recommended that Americans limit sodium consumption to 2,300 mg daily.
A 2006 scientific study looked at a representative sample of 9,000 Americans, estimating their sodium intake, and following major health outcomes over many years.  Participants eating under 2,300 mg sodium daily were 37% more likely to have a heart attack or stroke, and 28% more likely to die from any and all causes.

The latest public health push for sodium restriction is for 1,500 mg/day.  Our bodies have powerful metabolic mechanisms that resist restriction under 3,000 mg a day. Check with your own doctor regarding your situation.  If one has high blood pressure, however, they might measure their sodium intake for a week and consider cutting down to see if they could avoid blood pressure drugs.  They wouldn't necessarily go below 2,300 mg.