History of Salt

	Revision 7 . . December 15, 2001 12:46 pm by AjC [paragraph added on salt production and use]
	Revision 6 . . (edit) October 25, 2001 1:06 am by Rmhermen

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Salt is commonly used as a flavour enhancer for food and has been identified as one the basic tastes. Ironically, given its history, this has resulted in large sections of the developed world ingesting salt massively in excess of the required intake, particularly in colder climates where the required intake is much lower. This is believed to cause elevated levels of [blood pressure]? in some, which in turn in associated with increased risks of [heart attack]? and stroke.

Salt is commonly used as a flavour enhancer for food and has been identified as one the basic tastes. Ironically, given its history, this has resulted in large sections of the developed world ingesting salt massively in excess of the required intake, particularly in colder climates where the required intake is much lower. This is believed to cause elevated levels of [blood pressure]? in some, which in turn in associated with increased risks of [heart attack]? and stroke. Salt is produced by evaporation of sea water or brine from other sources, such as brine wells and salt lakes, and from mining of rock salt. Long a scarce commodity, industrialised production has made salt plentiful. About 51% of world output is now used by northern countries to de-ice roads in winter.