Marcel,
Welcome to the forum! Sorry you have this disease.
Regarding the amalgam removal, it might have some slight benefit psychologically but once you have
ALS, removing amalgam hasn't been proven to stop, slow down or reverse anything. I guess if you can afford to have it done, go for it.
There is reason to believe Eric may not be "winning" any longer. It's been reported he has reverted to stem cell therapy in Germany. Many of us on this forum have very mixed opinions on what he has done and continues to do with his marketing.
Zaphoon