As of today I also have 50% of my Amalgams removed. I definitely noticed increased brain fog today, MUCH more than I've had in quite a while, but I also just started taking Serrapeptase today (by itself) so I'm not sure if the brain fog is the result of mercury from the removal or die off from the Serrapeptase.
Regardless, the Serrapeptase has been successful already, in one day, at resolving the issue I'm taking it for (a sore swollen lymph node). So I have to say it seems like a miracle enzyme at this point.