I know we have some members who do have personal experience with having fillings removed, etc., who hopefully will chime in, but I will say from the scientific perspective there is zero evidence that detox (even presuming these tests reflect validated lab assays rather than self-interest), is able to slow progression.
The concept that you have these hidden toxicities that somehow bubble up unappreciated in any other way except stealthily killing off motor neurons (and once these are dead in ALS, they're dead) -- think about how selective an effect that would be at the levels these tests "reveal" -- is nonsensical. If you eat bad fish, you are going to notice it. But this is not true for toxin levels powerful enough to paralyze you?
And yes, I can anticipate the "they've been affecting you for years and you didn't notice" responses that are part and parcel of every scientific quackery review you'll find, because it's unprovable but lucrative. There are no documented cases of the changes you would hope for with this methodology, apart from emotionally and/or financially-fueled testimonials.
I will also note that my husband checked every exposure box on the Stanford/NIH list of potential etiologies in that study (he lived an interesting life), yet had what is considered a relatively long survival time despite starting behind the eight ball, e.g. FVC had already declined to <60% due to other illness pre-ALS.
Sadly, ALS is an ATM for some practitioners. I urge you to preserve your money for things your husband will need or that would improve his quality of life, that insurance does not pay for, which is a long and expensive list. Of course, I would also monitor legitimate clinical trials that he may qualify for -- you can set up alerts. There is still
much you can do in terms of improving quality and quantity of life.
Best,
Laurie