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By DONALD J. FREDERICK
National Geographic News
Salt once was traded ounce for ounce with gold. As the Roman statesman Cassiodorus observed, “Some seek not gold, but there lives not a man who does not need salt.”
The Romans knew what they were talking about. The humble saltshaker on the modern dinner table contains the very essence of life.
A blend of sodium and chlorine, salt regulates the exchange of water between human cells and the surrounding fluid which carries food in and wastes out. Sodium is involved in muscle contraction, including heartbeats; in nerve impulses and in the digestion of bodybuilding protein.
Keep* Body Stable
Without salt the body goes
92.2%