It is my understanding that there are six primary metals that are considered poisonous to the human body. They are not used in metabolic processes.
Mercury (no established safe amount)
Lead (no established safe amount)
Aluminum (tolerable in small amounts, but should not enter the bloodstream directly)
*Aluminum is replacing Mercury in vaccines because it is less toxic. However, the way that toxic metals work is that they put your immune system in overdrive, which helps to identify and process the vaccine faster and more effectively. In other words, the vaccine companies put poisons in the vaccines so that your body will have a stronger reaction to them
(I forgot the sixth one… will look it up)