I'm remembering a well-attended discussion on B2 and its ability to release copper from the liver. Do you remember that, Izzy?
I re-read a few old posts recently and @Asklipia reported that taking Manganese with B2 prevented loss of B2 in the urine.
My concerns about Mn right now are
- I might be intolerant to it right now - the last time I took it I had unpleasant joint issues (felt like joint weakening?)
- I read that Mn blocks uric acid elimination (my serum uric acid is currently sky high)