eMedicine Health - Low Potassium - Consumer health resource center providing information on the causes, symptoms, and treatment of low potassium. - http://www.emedicinehealth.com/articles/17135-1.asp
Potassium - Discussion of function, deficiency, health effects, sources, research, and recommendations from the Linus Pauling Institute. - http://lpi.oregonstate.edu/infocenter/minerals/potassium/
Potassium Dietary Mineral - Includes functions of, nutrient content, food sources, and deficiency symptoms. - http://www.anyvitamins.com/potassium-info.htm