I can only tolerate just a tiny amount, maybe just 1/5th of the rec dose and I don't do that every day, I've also bought electrolyte drinks and they don't suit me either. My theory (for me) is that with leaky gut the minerals get into the bloodstream and cause us to react. I keep trying as I'm going through a period of drenching sweats, so much so I don't need to use my FIR sauna at present, but you certainly need them when you do use one.
Ahmo got her intake by using foot soaks, so that's another way to go perhaps, I did one last night with a spoonful of mineral powder.