Okay, this is for Candi and all you other guys that believe you need to be eating 300+ grams of protein per day...
This is taken directly from the book EXTREME MUSCLE ENHANCEMENT 2nd Edition - by: Carlon M. Colker, MD, FACN... Doctor C is probably one of the smartest dudes in the sport of Bodybuilding, and if you've seen him lately, he's a friggin' beast!
The optimum daily level of protein for a bodybuilder is roughly one gram per pound of lean bodyweight per day. If you get too far above that, it may not contribute to protein synthesis anymore, but it does become a fuel source... Try to aim for a serving size of about 20-30 grams (of protein) per meal, every 2-3 waking hours. Based on that logic, a bodybuilder shouldn't be taking in much less than about 150 grams of protein each day... On the upper extreme, taking in 300 or more grams of protein a day really requires some justification. That being, you are either a monster of a man at a fairly lean 270 pounds or you live and train high atop Mount Cucamonga.
Keep in mind, he wrote this book as sort of "The Bible" for BODYBUILDERS, not just some fitness buffs. This is advice aimed at those who dream of going pro.
Here's another tidbit from his recommendations on post-workout protein...
As discussed, 20-30 grams of protein every 2-3 hours is about right for extreme muscle enhancement while training hard. . .with one major exception. If you've just put in a very intense workout, you have a window of opportunity just after the training session when your body can absorb a significantly higher level of protein... The notorious Underground Steroid Handbook author Dan Duchaine used to talk about this a lot. It seems your body may actually crave a higher protein intake just after truly intense physical output (not to be mistaken for a half-assed routine). Increasing protein intake to 40-50 grams at this critical time is not at all problematic and in fact should spur considerable growth if you're trained correctly and your protein source is a good one.