A brewing byproduct rich in B vitamins, kind of like brewing yeast sediment highly salted. Nice on toast with a little butter, and on crackers.
It's...well...BROWN...and looks....not that great...as a foodstuff.
(I have a big jar of it! Come and get me!)
Yet another example of the government making criminals out of us... Just a week or two ago, it seems I broke state, and quite possibly federal drug laws by bumming a few Cold Formula Advils off of a co-worker, due to the chance that I might start up a meth lab with them!
Mark