Re: 500mg of lugol's too much?
Tayto I didn't say you shouldn't take it for more than 2 weeks.
I said take
SSKI for 2 weeks, see the effects it makes on you, and if you like it, then you can think about buying better qualities.
I don't think 2 weeks or 4 months of that
KI you're buyinh can harm you. However, if you plan to keep on taking it for many months, years or life, then it's worth to try to find the purest quality you can.
That is because very small ammounts of impurities won't harm you in weeks or months, but could harm you if taken for long periods. Still I think you get much more shit if you live in a big polluted city, eat things that aren't organic, etc. And certainly most of the supplements you are going to use aren't going to be better quality than USP.
Please don't obsess yourself with purity at this stage of life. We can't run away from toxins, we've got to live with them (or live within an isolated crystal bubble).
Good luck! Keep us posted!