The supplements are: (here goes) Omega 3 fatty acids, vit B complex, with extra B6 and B12.
NAC, lipoic acid (for neuropathy), quercetin/vit C/bromalein combo, co10, magnesium, calcium and vit D (because I'm post-menopausal). I think that is everything. It sounds like your father caught it early (was that stage 1v or IV?)
How is he feeling? Best wishes to you both!
Jeanne