Happy sunday. Zinc gives my a burning neuropathy, even at lowish doses. I have high copper, so I don't think that is the issue. I also have stored mercury, but I am not getting any systemic problems from the zinc that I can tell. The neuropathy has never cropped up untill the zinc/methylation supps. ... I hope its not MS, I suspect zinc might kick up killer t cells... now the tingling comes and goes regardless of what I take. Which could be MS or it could be Sulfur dragging up mercury from diet like meat and stuff. I digress. Sorry this is kinda disorganized my brain is not working well today. : I suspect another differential: maybe the zinc is depleting some essential cofactor... what could this be? I take lots of Mg and decent Mn.