i am a minimalist when it comes to health matters. i have done all of those things but now i am only doing Iodine and doing just fine. i do get plenty of fresh air and sunshine(when it shines!). i dont like "forever" supplements unless i see they are absolutely necessary. Iodine may be necessary to one degree or another.
if the halide displacement isnt working for you, then perhaps you should do those other things if they have helped others. i just took an ES bath the other day and it really relaxed me. plus i eat a lot of garlic and onions.
for sustainability i like barefoots plan. he puts Iodine in his garden and eats what the plants take up. smart guy, that barefoot. i dont even have a garden yet.