bbaker6212
New Member
- Joined
- Aug 23, 2014
- Messages
- 1
@Travis, I'm wondering if your are misinterpreting with your statement...
"So proteins are absorbed as full proteins, and at every stage down to free aminos."
My interpretation is that nearly all of them are broken down to single amino's by the time they hit the bloodstream so bioavailablity is basically the same. I don't see how the rate of digestion matters much...
http://en.wikipedia.org/wiki/Protein_in ... #Digestion
"Most proteins are decomposed to single amino acids by digestion in the gastro-intestinal tract.[14]
...
Before the absorption in the small intestine, most proteins are already reduced to single amino acid or peptides of several amino acids. Most peptides longer than four amino acids are not absorbed. "
...
Absorption into the intestinal absorptive cells is not the end. There, most of the peptides are broken into single amino acids.
...
Absorption of the amino acids and their derivatives into which dietary protein is degraded is done by the gastrointestinal tract. The absorption rates of individual amino acids are highly dependent on the protein source; for example, the digestibilities of many amino acids in humans, the difference between soy and milk proteins[15] and between individual milk proteins, beta-lactoglobulin and casein.[16] For milk proteins, about 50% of the ingested protein is absorbed between the stomach and the jejunum and 90% is absorbed by the time the digested food reaches the ileum.[17]"
"So proteins are absorbed as full proteins, and at every stage down to free aminos."
My interpretation is that nearly all of them are broken down to single amino's by the time they hit the bloodstream so bioavailablity is basically the same. I don't see how the rate of digestion matters much...
http://en.wikipedia.org/wiki/Protein_in ... #Digestion
"Most proteins are decomposed to single amino acids by digestion in the gastro-intestinal tract.[14]
...
Before the absorption in the small intestine, most proteins are already reduced to single amino acid or peptides of several amino acids. Most peptides longer than four amino acids are not absorbed. "
...
Absorption into the intestinal absorptive cells is not the end. There, most of the peptides are broken into single amino acids.
...
Absorption of the amino acids and their derivatives into which dietary protein is degraded is done by the gastrointestinal tract. The absorption rates of individual amino acids are highly dependent on the protein source; for example, the digestibilities of many amino acids in humans, the difference between soy and milk proteins[15] and between individual milk proteins, beta-lactoglobulin and casein.[16] For milk proteins, about 50% of the ingested protein is absorbed between the stomach and the jejunum and 90% is absorbed by the time the digested food reaches the ileum.[17]"