Whey protein and the dog

Does anyone with animals see any problem with giving my Rottweiler 5 or 10 grams of whey protein mixed up in his water after a long run or a lot of exercise? He really seems to like it. I figured “Heh, I drink a post-workout shake, why not?”

I’ve seen a lot of drunk dogs who were fed beer in my life and they didn’t die, so I wouldn’t see what would be wrong with feeding a dog protein.

He’d probably prefer a piece of meat with his water.