We know too much salt can contribute to high blood pressure, but that is not where it stops. Eating too much salt may damage your blood vessels, heart, kidneys, and brain. This information is from scientists at the University of Delaware. They found that high salt intake may impair the endothelium, which is the inner lining of blood vessels involved in blood clotting and immune function, increase hardening of the arteries, weaken heart and kidney function, and interfere with the sympathetic nervous system (the flight-or-fight response.) The USDA recommends no more than 2,300 mg of sodium per day.
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