After some recent blood tests for something (nothing to do with deficits) I noticed that my copper, zinc and selenium levels were a bit low.
Im on a high multivitamin anyway but suspect that my high iron supplementation is possibly interfering with absorption so thought I would get zinc, selenium and copper all together, now I read that you're not meant to take them together because the zinc interferes with the copper!!!
I already have to space out iron, PPIs, calcium, the multivitamin, such a nightmare!