Fonz said:1. Some proteins are more bio-available than others regarding nitrogen retention.
Whey would be a 1.0. meat about 0.82 etc.... So, 300g protein isn't 300g nitrogen, it's a bit less. Probably around 240-260g for us since we drink a lot of protein shakes. The rest of the nitrogen gets excreted. So, if you want MAXIMAL results aim to get your protein that has extremely high bio-availability.....0.9+/1.0
One other thing, during the first week or so, your body will be overwhelmed by the massive protein intake, and you'll probably lose half of it taking dumps throughout the day. So increment your protein intake gradually over the course of 2 weeks until you get to your desired protein intake. That should let your body adapt to the change in diet.
Excellent points that should not be overlooked.
Thanks Fonz