Too much tylenol will destroy your liver. The dose makes the poison. I've been prescribed potassium chloride tablets before.

Intravenous potassium is significantly more hazardous than orally consumed.

Wikipedia lists the LD50 of oral potassium at 2.6 g/kg. Meaning your standard 70kg dude would have to eat 182 grams (6.4 oz Freedom Units) to hit that limit. Which would be just beyond horrible to attempt to consume that in a sitting.

Too much $anything, and it will stop your $something you need to live.

Having said that, most by mouth potassium supplements are delayed release so you don’t get it all at once (and absorption already slows things down a lot).

Potassium chloride is used in lethal injections to the tune of 75 mg/kg. For a typical adult, that's an injection of 4-6 grams all at once. You could never eat that much in a sitting: it would taste horrible and probably cause immediate vomiting, and still it's not so readily absorbed through the gut anyway. See:

https://research.wustl.edu/wp-content/uploads/2017/08/SOP-KC...

You could easily eat 4-6 grams (if you wanted to obviously). But absorption us much lower and slower you probably need over hundred grams or so to reach levels that would be lethal

> you probably need over hundred grams or so to reach levels that would be lethal

Apparently if you ingest ~25grams of _table salt_ your life might be at risk.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537768/

I'd imagine Potassium might be a bit more toxic in lesser doses.