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A medium banana has about 422 mg of potassium
http://www.extension.iastate.edu/wayne/news/potassium.htm
A banana is a pretty good source of potassium. However it is not sensational. It has about the same potassium content per calorie as a potato. See http://members.tripod.com/~charles_W/table3.html
First answer by Tymothy. Last edit by Isoptera. Contributor trust: 13 [recommend contributor]. Question popularity: 21 [recommend question]




