High resolution image of a grain of sea salt. Sea salt is one of the most common causes of sodium poisoning.
Salt poisoning is an intoxication resulting from the excessive intake of sodium (usually as sodium chloride) either in solid form or in solution (saline water, including brine, brackish water, or seawater). Salt poisoning sufficient to produce severe symptoms is rare, and lethal salt poisoning is possible but even rarer. The lethal dose of table salt is roughly 0.5–1 gram per kilogram of body weight.[1]
In medicine, salt poisoning is most frequently encountered in children or infants[2][3] who may be made to consume excessive amounts of table salt. At least one instance of murder of a hospitalized child by salt poisoning has been reported.[4]
Adults can consume too much salt by consuming seawater, pickled goods, brine water or soy sauce.[5] Salt poisoning has been seen in a number of adults with mental health problems.[6]
Salt poisoning can affect most species of animals, although it is more common in swine, cattle, and poultry.[7]
^Carlberg, David J.; Borek, Heather A.; Syverud, Scott A.; Holstege, Christopher P. (August 2013). "Survival of Acute Hypernatremia Due to Massive Soy Sauce Ingestion". The Journal of Emergency Medicine. 45 (2): 228–231. doi:10.1016/j.jemermed.2012.11.109. PMID23735849.
^Ofran, Y.; Lavi, D.; Opher, D.; Weiss, T. A.; Elinav, E. (December 2004). "Fatal voluntary salt intake resulting in the highest ever documented sodium plasma level in adults (255 mmol L-1): a disorder linked to female gender and psychiatric disorders". Journal of Internal Medicine. 256 (6): 525–528. CiteSeerX10.1.1.1084.757. doi:10.1111/j.1365-2796.2004.01411.x. PMID15554954. S2CID20446209.