Every educated knows (or should know), and every scientist definitely does, that the adage "There's no such thing as a stupid question" is - stupid. Quite the opposite, the question is *the* determining factor in what (kind of) answer you can expect.

"Chemicals, OMG!!!" - no, I indeed have nothing useful to say to you.

Education is FREE these days. Khan Academy, edx.org, courser.org, Youtube - courses in chemistry, biology, physiology, anatomy. Your CHOICE to have said what you did, don't blame ME (for saying "idiot" to someone who choses ignorance voluntarily). And for mercury toxicity, there's Google and TONS of sites and forum messages (this and other forums).

And don't complain about the echo when you started it. I gave you advice enough to your various questions, THIS was your only reply. It's MUCH easier to help people who ask reasonable questions. "putting those chemicals in your body cant be good" is... nothing worth responding to. Do you even know what path "chemicals" take when you take something via the oral route? And how "chemicals" get changed and excreted? Again: all that information is FREE. No excuses. These days ignorance is a choice.