BodyRecomposition Support Forums  

Go Back   BodyRecomposition Support Forums > My products > The Protein Book
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
Thread Tools Display Modes
  #1  
Unread 04-15-2009, 07:17 AM
Overkill's Avatar
Overkill Overkill is offline
Senior Member
 
Join Date: Jan 2009
Posts: 719
Default Protein Digestion vs. Absorption

I have the Protein Book and I've read all of the protein articles on the main site. There's one question that's I've been thinking about a lot and haven't really found the answer (Please forgive me if it was in the literature I mentioned. If it was it may be my misunderstanding of the topic that caused me to not really comprehend what I read. Iím more than willing to hit the book again if I missed it). I think part of this is because I may have a skewed or incorrect view on what digestion and absorption really is.

So, I've seen time intervals listed for digestion and I've seen them listed for absorption for various different proteins.

My limited understanding (which could be very wrong) is that digestion is the process of breaking down the nutrients into a form that can be absorbed by the body.

So let's assume we're talking about whey isolate which might absorb between 8-10g per hour.

Now, when discussing nutrient timing and training it may be recommended that a person consume 40g of protein pre and post WO (I'm just using ballpark numbers for example).

So, it took a while but here's my question... if the rate of absorption is 10g per hour why would it be so beneficial to consume ~80g within a couple of hours time frame to maximize the effect of protein synthesis if only ~20g would be absorbed in that time frame anyway? Does the volume of aminos pre absorption signal the effect of protein synthesis regardless of the rate at which the aminos can be used?
Reply With Quote
  #2  
Unread 04-15-2009, 07:21 AM
lylemcd's Avatar
lylemcd lylemcd is offline
Administrator
 
Join Date: Feb 2008
Posts: 22,641
Default

No, the signal is only related to what's in te bloodstream (and it may be changing levels of aminos esp. leucine). The contradiction is that the data is being pulled from different data sets. The pre/post worout stuff is on studies that used that amount and found maximal results.

I can't explain the contradiction any better than that.
Reply With Quote
  #3  
Unread 04-15-2009, 07:25 AM
Overkill's Avatar
Overkill Overkill is offline
Senior Member
 
Join Date: Jan 2009
Posts: 719
Default

Ok, fair enough. Thanks for the reply, Lyle.
Reply With Quote
  #4  
Unread 04-21-2009, 12:56 AM
swolll swolll is offline
Member
 
Join Date: Mar 2009
Posts: 82
Default

Does the digestion time of whey increase very much if combined in a meal with slow-digesting protein? Would that make more of it acceptable on RFL, or is still advised against?
Reply With Quote
  #5  
Unread 04-21-2009, 08:45 AM
lylemcd's Avatar
lylemcd lylemcd is offline
Administrator
 
Join Date: Feb 2008
Posts: 22,641
Default

When whey is combined with other nutrients, the digestion speed does decrease.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 12:22 PM.


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.