Whey Protein

[Big Bapper]

How many grams of whey protein can the body use in one sitting

 

[edge250]

http://www.professionalmuscle.com/forums/showthread.php?t=20114&highlight=PROTEIN

 

[Big Bapper]

Thanks for the link Edge. The reason for my question was because I was under the impression the the liver can process so much Whey at any one given time before the rest is wasted.

 

[Koevoet]

Thanks for the link Edge. The reason for my question was because I was under the impression the the liver can process so much Whey at any one given time before the rest is wasted.

BB, your liver never processes whey. Any protein we eat is digested and the amino acids pass through the intestine and into the bloodstream. Amino acids have no storage form, so they are either used as fuel or converted into other compounds (fat, glycogen). However, leucine, isoleucine, and valine are all processed by the muscles rather than the liver and are needed for the maintenance of muscle tissue. The liver uses amino acids for gluconeogenesis (created glucose from aminos) if necessary, for creating other aminos, or to create proteins for its own use.

http://www.vivo.colostate.edu/hbooks/pathphys/digestion/liver/metabolic.html

**broken link removed**

http://www.epidemic.org/theFacts/theLiver/proteinMetabolismB.html

 

[Big Bapper]

So in regards to Protein oxidation by the liver.

 

[Koevoet]

BB, the liver does not perform protein oxidation, which could also be called degradation, are you talking about oxidative deamination? Deamination and transamination occurs in all tissues, but mostly the liver. However since this is essentially on ongoing process and involves amino acids and not protein, there is no real limit to it.

 

[Big Bapper]

BB, your liver never processes whey. Any protein we eat is digested and the amino acids pass through the intestine and into the bloodstream. Amino acids have no storage form, so they are either used as fuel or converted into other compounds (fat, glycogen). However, leucine, isoleucine, and valine are all processed by the muscles rather than the liver and are needed for the maintenance of muscle tissue. The liver uses amino acids for gluconeogenesis (created glucose from aminos) if necessary, for creating other aminos, or to create proteins for its own use.



= Oxidation, am I correct as you seem to know allot more about this that me. Just trying to understand.

 

[Koevoet]

BB, first off I am not a biochemist, so what I know is from my own personal research and reading "Human Protein Metabolism" by Peter Welle and a couple of other books.

The metabolism of protein by the liver is not known as oxidation, whether it be in the form of gluconeogenesis, transamination, deamination, or even in the formation of urea. All of these are ongoing processes that have no set limit to them, in terms of how much amino acids they can handle at one time. Obviously it is finite, but the aminos the liver does not handle will be handles by other tissues or remain in the blood until used.

 

[Big Bapper]

Sounds like a cool book. Must try to get my hands on it........thanks for your input buddy.