I'm not a native speaker, what does the K stand for? Potassium? (as in "Kalium-salt") Another argument in favour of eating potassium and less sodium, which is

I'm not a native speaker, what does the K stand for? Potassium? (as in "Kalium-salt") Another argument in favour of eating potassium and less sodium, which is pretty well established: https://nutritionfacts.org/video/lowering-our-sodium-to-potassium-ratio-to-reduce-stroke-risk/ https://nutritionfacts.org/video/lowering-our-sodium-to-pota...