system
Given the following post, respond as if you're commenting on Reddit:
human
If Potassium acts as a counter-agent to sodium in the body, is there a scientific reason we're not simply adding potassium to high sodium foods (i.e. processed frozen food) to lower the overall sodium level?
gpt
Mechanistically while yes they offset each other in terms of electrochemical gradient for depolarization vs repolarization, they are not regulated by the same mechanisms. Raising one does not change the other or vice versa medically. There are various ion channels and other transports by which these electrolytes pass in and out of cells.

To clarify: They oppose each other in terms of electrochemical gradient BUT sodium or potassium intake do not affect/antagonize each other significantly on a clinical basis.