>>514705529
american bread and other foods have bromine, which takes up space in your thyroid that should have iodine in it. it was used in old medicines to make your kids put on weight, see pic related
i think mountain dew has this as well.
but pretty much all fast food breads and flour based products like pastry and gravy will have this in the us. this is why keto took off so well there, simply stop eating bromine and you get better.
it's also offgassed in new cars, carpets, engineered wood, and hot tub chemicals.