DBF is on a crapload of supplements and has been for about 5 months. We added grapeseed extract this month, but he's been on the other stuff since January. He's taking a super supplement by Nature's sunshine [which has plenty of zinc], L-carnatine, L-arganine, L-tyrosine, vitamin C, folic acid, magnesium, and B-complex.
ETA: he stopped drinking in December, and quit using marijuana as well, the beginning of this year. It's all so infuriating and depressing.