You can do whatever you like with it mate. Spread it on a slice of fresh bread if you want.

Seriously, I've heard cows love it, but there is a ban on feeding it to them. Something to do with BSE. Its a bit daft, because the glyc that caused BSE was made from animal products. Isn't glyc the same stuff they use to make jelly?
And yeah, the glyc itself is probably fine, its just the other bits in it.