Source: A week ago I read through all studies I could find on pubmed about optimal protein intake for muscle gain.
Correct on the steroids and fasting though.
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."
Better to eat too much protein than too little anyway.
We do eat a lot of meat over here though (I believe #1 per-capita in the world).
The ones I often see are somewhere between .6g and 1g per lb of body weight, with 1g being the most common recommended on body building forums.
This article (http://mennohenselmans.com/the-myth-of-1glb-optimal-protein-...) calls the 1g/lb recommendation a total myth.
Another important question is whether the ratio is against total or lean body weight? If you've got a lot of fat, you may be over-calculating your protein needs.
Eating too much protein may or may not hurt. Some say excess protein taxes the kidneys (which filter it out into your piss). Some say your body ends up converting it to fat. (http://www.bodybuilding.com/fun/maki1.htm)
Also following recommendations from people who's goal it is to look like Lou Ferrigno may not make sense for most people.
So you don't think I'm attacking you, here's a pro-protein link: http://www.livestrong.com/article/556322-how-much-protein-is...
Who's right? Who knows?