I can only presume that they got the atomic symbol for potassium (K) mixed up with vitamin K. That’s so wrong it crosses over into being “not even wrong” but entirely wrong and beside the point. I hope they aren’t your doctor anymore, or anyone’s. Please tell me you reported this incident to the state medical board.

https://en.wikipedia.org/wiki/Not_even_wrong

> "What you said was so confused that one could not tell whether it was nonsense or not."