thanks for info GM, but my granddaughter says she has no metal fillings in mouth of any kind. dont know how she got it other than from maybe from fish.uses only stainless pots and silverwear. she stopped wearing any metal jewelry, and wears her watch on her key chain, not on her wrist, with stainless steel backing just to be sure. also dont know how high cooper got into her system. shes feeling better now after going to a naturpaths doc.and taking drops of something, what i dont know. like a grandma i worry when she has to go to cuba in january for school work there for 6 mons. pray things go well. thanks again.