All of the above areas should be light pink. In people with white complexions gray discoloration is definite confirmation of mercury toxicity. During mercury detoxification all of the above areas eventually become light pink. In pregnant women white spots on the finger nails most often signify calcium deficiency. Cracks or holes on the tongue dentists call Geographic tongue.
Frequent urination suggests mercury toxicity.
It is also a marker for diabetes. There are many other subclinical signs of mercury poisoning, but these are the complaints that I most often hear from persons seeking information about short term memory loss. Compare Park-Davis symptoms with the above symptoms of chronic low level mercurial poisoning. Caution I would like to enter here a few words of prudence about the rapid and random removal of mercury fillings. Removing all amalgam in a very short time is well tolerated by most healthy people, but has repeatedly led to devastating long-lasting or even permanent disease in sensitive individuals.