Even 1/g per pound is too much. A perfectly optimal level for bodybuilders is around .82g per pound. One can extrapolate from there for those not seeking hypertrophy. - http://mennohenselmans.com/the-myth-of-1glb-optimal-protein-...
It's worth pointing out as well that there is no disadvantage to consuming too much protein.
Strength standards for beginners.
http://www.exrx.net/Testing/WeightLifting/StrengthStandards....
Uh... there are many sources that cite problems with eating too much protein. Dehydration, kidney stress, calcium deficiency, heart disease, and other side-effects of increased fat or cholesterol levels of foods with large amounts of protein.
http://www.livestrong.com/article/468026-physiological-conse... http://breakingmuscle.com/nutrition/put-down-steak-youre-eat... http://www.medicinenet.com/script/main/art.asp?articlekey=50...
"Finally, the authors reiterate that even if you consume “unnecessarily high protein intakes” like 1.3 grams per pound of body weight per day, this still isn’t a risk to your kidneys unless you already had kidney disease."