Effects of high potassium intake on humans.
Unfavorable health effects due to potassium consumption from borehole water are highly unlikely to occur in healthy individuals. Potassium intoxication by ingestion is rare, because potassium is rapidly excreted in the absence of pre-existing kidney damage.
A large single dose of potassium usually induces vomiting.
Potassium toxicity has been studied in relation to the use of high doses of salt substitutes. The typical symptoms described have been chest tightness, nausea and vomiting, diarrhea, hyperglycemia, shortness of breath and heart failure.