[AbiDrew85]

Well, if aminos are taken in addition to your diet, you retain the growth far better.

If you were/are like anyone with a tired liver, you can eat all the protein you want but you would have a hard time converting it to amino acids.

Actually proteins are digested in the stomach and intestines and are already broken into individual amino acids before it reaches the liver. It then goes to the bloodstream, skipping the liver entirely at first. The amino acids only ever reach the liver if you are taking in protein excess to your bodies needs, in which case it then gets converted in the liver to be excreted after further decomp and eventual expulsion by the kidneys or to raw energy depending on bodily needs.

So the real honest truth is that it doesn't matter if you take amino's that are already separated out from each other and not in a protein chain, or a "complete" protein, problems with your liver will cause difficulty from excessive amino's period.

Typically though it'd be nearly impossible to reach that upper limit. It's purported to be around 2.5 g/kg... so for a fairly average female of a body weight around 55kg, that'd be a daily protein intake of over 137 grams before liver problems could become apparent. A smallish female of around 45 kg would still need a daily protein intake of over 112 grams. Even an incredibly tiny female of about 40 kg would need 100 grams.

Unless you're waaaaaaay overeating, good luck ever reaching that...

The exception, of course, being if you have some kind of liver or kidney diseases, then it is often advisable not to exceed 1.6 g/kg, which is a fair bit easier to do.