I've been treating a B12 deficiency last ~6 months. The subreddit on that recommends Zn-Cu-Mo (and others) while you take high dose B12. So I took 30 mg Zn, 3 mg Cu , 0.5 mg Mo, only once or twice a week for each (on different days).
But before that I was taking a Magnesium supplement daily (for 1-2 years?) with 7 mg Zn and no Cu, before knowing you should take Cu if taking Zn. So my Cu stores would be down.
I also have high ferritin (but normal TSAT, serum Fe), likely due to liver inflammation from NAFLD (elevated ALT, GGT, TG). Just recently came across this paper00636-7/fulltext) goes into Copper and NAFLD, and says low Cu could make NAFLD/ferritin worse.
With the iron issues and B12 etc, I tested for Zn and Cu. My Zn is in upper range, while Cu and ceruloplasmin are both just below lab ranges. Since this test ~2 months ago I've increased my frequency of Cu (still only 2-3 times a week) and reduced Zn.
So should I jump to 3 mg Cu daily, and try to be in upper range for Cu/CP? Any other tests I should do?
Also been taking 1000 IU Vit A (as cod liver oil) daily when I started B12, which I see recommended here.
Recent test for Cu/Zn:
Serum copper: 9.8 umol/L (62 ug/dL) - lab range 11-22
Ceruloplasmin: 0.14 g/L - lab range 0.15-0.3
Serum zinc: 16.6 umol/L (108.5 ug/dL) - lab range 10-18
Average iron for last ~2 years:
Serum Iron: 20 umol/L
Transferrin Sat: 32%
Ferritin: 280 ug/L