Society and culture
In the United States, hyperkalemia is induced by lethal injection in capital punishment cases. Potassium chloride is the last of the three drugs administered and actually causes death. Injecting potassium chloride into the heart muscle disrupts the signal that causes the heart to beat. This same amount of potassium chloride would do no harm if taken orally and not injected directly into the blood. References
External links

USDA National Nutrient Database for Standard Reference, Release 26 Archived 1 March 2014 at the Wayback Machine
List of foods rich in potassium
National Kidney Foundation site on potassium content of foods
PMID 25704934.
van der Hoeve, J.; Flieringa, H. J. (1 March 1924). "Accommodation". British Journal of Ophthalmology. 8 (3): 97–106. doi:10.1136/bjo.8.3.97. PMC 512904. PMID 18168370.