According to researchers at Scotland’s Sterling University, regularly using scratched or damaged nonstick pans can as much as double your risk of thyroid problems. Their best guess as to why: Two powerful chemicals in nonstick coatings -- called perfluoroctane sulphonate (PFOS) and perfluorooctanoic acid (PFOA) -- sabotage the ability of thyroid hormones to bind to the tissues that desperately need them.
Tip: You don’t have to give up your favorite nonstick pans and pots entirely. But always use plastic utensils and lots of TLC to avoid scratching and damaging their delicate surfaces. Replace cookware as soon as the nonstick surface develops scratches, blisters, rust flecks or any other signs of damage.