Actually, it would probably be pretty easy to carry a lobster, because I wouldn't even have to make room for it in my pockets, I could just clip it to my shirt, or shorts -lol!
Hello big brother!!!
I understand the whole energy diverted to digestion thing - it's one of the reasons I REALLY need to start making sure that I don't run for at least ONE full hour after I eat.
Or just don't eat protein before workouts, that's what takes extra energy. Sugars and fats are easy to digest. The protein will just be burned as energy anyhow.