Salt Notes : Salt and Human History
Carnivores can get their salt supply from the extracellular fluids of their
prey.
Herbivores need salt, in addition to their feed. Lack of salt decreases their
speed, their endurance, and their fertility.
Hunter-gatherers did not need to add salt to their food. Such a need may
have appeared with the invention of agriculture.
Salt extraction occurred during the first half of the sixth millennium BC in
the French Alps, in Moriez.
Boiling brine to make salt is documented during the Neolithic (4th
millennium BC) within the Lengyel culture in Poland.