joegrane
So you have low Cu on reliable RBC test. I'll trust that.
I'm certainly not opposed to hair tests. I think they are a reasonable test to get when doctors are stumped about underlying causes and you are looking for clues.
However I think people need to be careful about trusting hair tests too much.
Were almost of the essential elements low or lo-norm?
A PhD chemist and heavy metal detox consultant, A. Cutler, has a theory about statistically strange hair tests. He thinks they can be suspicious for the effects of heavy metals, especially mercury.
There is an early version of the theory in this discussion with a noted autism doctor
http://onibasu.com/archives/am/2200.html
If almost all of the essential elements are low or lo-norm I would not be quick to supplement Mn. It is toxic not far above useful levels.
Do you have symptoms of low Cu?
Any theories on why you might be low in Cu?
Have you tried Cu supplements? Do they make you feel more motivated or even too amped up and anxious. Cu is involved in making an adrenaline-like neurochemical