It wont do the dog any harm, although you might find that it will get very very bad wind.
I think dogs find it harder to digest certain types of protien than humans. Dont quote me on that, but im pretty sure its right.
I know a guy who used to put 2 scoops in with the dog food and 2 charcol tablets.
The charcol absorbs the gas inside the dogs tummy, stopping it from farting as much and stopping them from smelling (They put charcole in dog biscuits for the same effect)
Failing that, you could always do the "Dusk to Dawn 2" trick and throw in a handful of dianabol with its brekkie every morning