Quote from RCG's Girl:
From the Northwestern University Website:
Protein from animal sources (meat, fish, dairy products, egg white) is considered high biological value protein or a "complete" protein because all nine essential amino acids are present in these proteins. An exception to this rule is collagen-derived gelatin which is lacking in tryptophan.
Plant sources of protein (grains, legumes, nuts, and seeds) generally do not contain sufficient amounts of one or more of the essential amino acids. Thus protein synthesis can occur only to the extent that the limiting amino acids are available. These proteins are considered to have intermediate biological value or to be partially complete because, although consumed alone they do not meet the requirements for essential amino acids, they can be combined to provide amounts and proportions of essential amino acids equivalent to high biological proteins from animal sources.
Plants that are entirely lacking in essential amino acids are considered incomplete proteins or sources of low biological value protein. These sources include most fruits and vegetables. A low biological value means that it is difficult or impossible to compensate for insufficient amounts of essential amino acids by combining different sources as with partially complete proteins.
Now comes the fun part. If you have an essential amino acid deficiency your body your body needs to get the essentials aminos from somewhere - your body begins to cannabilise itself. This leads to a condition known as Protein-Energy Malnutrition (PEM)
***PEM has the following clinical features: weight loss, diarrhea, loss of lean body mass, muscle weakness, depigmented hair and skin, pressure sores, and depressed immune function.***
And to those vegetarians that have watched their foods and mixed correctly and added things like yoghurt, eggs and fish because they knew what they were doing then congratulations!
"You made you decision, OK, I have made mine. I do not try to shove a 500g juicy BBQ T-Bone steak down your throat. I don't want your "vegetarianism"
complete bullsh^t! nice try though

