Hey there. I thought I read that it was a no-no to take Methylcobalamin B12 unless you have your dental fillings containing mercury removed. Now I can't find that info anywhere. Anyone taking methyl B 12 sublingual, and still have your fillings in? I don't know if it's just part of a protocol. Or is it really dangerous?? Cyano B12 shots did nothing for my fatigue... Thanks for any input.