I'm no expert in this, nor very experienced - but I thought I'd chime in for a bit. Again, I don't know exactly which sources to trust, please keep an open mind and do your due diligence.
"Copper is an important thyroid indicator. The key here is that one cannot use the hair copper level as the only copper indicator because copper often does not accumulate in the hair, but rather in the brain, liver and other organs. One must not supplement copper simply on the basis
of the hair copper level."
"Copper raises calcium and lowers potassium. Elevated calcium and low potassium is a slow metabolizer pattern associated with the presence of excess tissue copper. It does not matter if the hair copper is low, normal or high. The pattern is associated with reduced thyroid utilization and hypothyroidism."
What conclusions have you come up with? How did you get to them?