I thought that sounded off...was always under the impression it was more like 30!
so I went looking.
found this online:
The average sedentary adult needs to consume only 30 to 60 grams of dietary protein per day to replace amino acids used by the body (4.) It is true that as an athlete exercises, more amino acids and protein are used by the body than a sedentary person, thus the need for dietary protein may increase.
source-- sorry, I lost it-- but it was a lot more mainstream I guarantee, than Andreas Moritz 's for example, and I think his ideas about protein are pretty much *on*.