I have a bunch of Iodine supplements, and I don't know what to do with them...?

Long story short, I was gonna go Vegan so I bought them. But I later decided to just go Pearian because it was easier, and now I have a bunch of Iodine supplements that I don't need. I used them for a while... I eat seafood and yogurt, which is where Iodine is most abundant. So what should I do with the open bottle Iodine supplements?? :/