Salt is a simple chemical compound, but its presence in the human diet
and its effect on blood pressure has provoked a complex debate.
At issue is the effect of sodium on hypertension—a condition affecting
almost 50 million individuals in the United States. Some researchers argue
that decades of research conclusively show that sodium increases blood pressure.
But skeptics say the link remains unproved—especially among those with
normal blood pressure.
Mitka M. Dash of Dissent on Salt Intake Advice. JAMA. 2004;291(14):1686-1689. doi:10.1001/jama.291.14.1686