Expired Whey Protein

[uthscsa19]

I am just about to get back into a workout regimen again and have some Optimum Nutrition Whey Protein Sitting in my cabinet. It expired 2 months ago, since I've taken a long break (too long) from lifting. Is it still good to use? I have 3lbs left, and don't want to toss it since its $30 worth of good protein. Anyone have any idea if its still ok to use? Does it degrade? Will I get less protein per gram?

Thanks

[Lisa~]

Protein expiration date...