wateroflife
I know there is controversy over amalgam, but the mercury in them is not able to leach out as mercury.
A good friend and industrial chemist who loved organic chemistry told me that there are various forms of mercury in some fish, but nobody has been able to prove that the compounds in fish that contain mercury are able to poison us like mercury does. Another example is laetrine found in apricot kernels which is supposed to break down cancer tumours. That compound contains cyanide and formeldehyde both of which can poison you, but apparently research has shown that it is impossible for the body to unlock the two poisons from the compound so it is harmless. Tumour apparently emit the only enzyme known to unlock the chemicals and they are then used to attack the tumours.
Lastly, urine is taken into the stomach where waste is not used and passes down the intestines. Only the good stuff is used, I doubt if
Amalgam will have any effect.