Far bit of broscience appearing in this thread :nono:
Only thing is digestion rates have no effect on protein uptake.
It's not measured at the gut, it's measured at the muscle, proteins are actively transported via the blood stream and then uptaked into the working muscle. There is a finite supply of these transport ions and they can only work at a give pace, and yes exercise, particularly resistive training stimulates them. Only two labs in the world can do this and they don't waste their time or funding on sports performance, but their data appears to corralate to sports performance very well.
You don't need much in the way of carbs with protein post exercise, this 3:1 isn't supported by science. Pre and post work out intakes is a load of crap, intake as soon as possible is a load of crap anything out towards 2 hours is excellent.
http://www.ncbi.nlm.nih.gov/pubmed/19056590
http://www.ncbi.nlm.nih.gov/pubmed/20519362
http://www.ncbi.nlm.nih.gov/pubmed/18535123
http://www.ncbi.nlm.nih.gov/pubmed/12217881
http://www.ncbi.nlm.nih.gov/pubmed/18056791
good stuff MWI as per usual.
When I referred to digestion rates though I am not just talking the protein uptake into the muscles. Some people seem to think that taking more protien is pointless, while it may be pointless on a muscle uptake process they extra grams of protein still equate to daily calories. Its not like they are pointless but in terms of muscle uptake they may be.
Questions
-How long does the broken down protein remain available to the muscles, under exercise we are obviously increasing our need, taking 20 grams may provide you with enough but for how long? Does taking more provide you will fuel in a few more hours when the original 20grams is gone. You would expect most people would eat but for those who have big breaks between meals. At what point does the excess protein become wasted and how long does it stick around for later use in the muscle.
More so this is probably important for those who do a fasting eating style where they may eat than not have any food for 12 hours.
-Why are digestion rates not important, the protein needs to be broken down and absorbed before it can be utilized. There is an infinite supple of the needed nutrients in the blood but where are these derived from Once you have used the fuel from food that is freely available in the blood? The body needs to get them from somewhere and if they are derived from breaking down muscle you are than breaking down muscle to build other muscle which just is counter intuitive. If they are derived from breaking down fat than as I mentioned earlier its less of an issue.
My question lies in the window where the body uses its available fuel for muscle building in the blood then needs to turn to catabolic functions to derive more fuel to refuel the blood with needed nutrients. If you have something that digest quickly you avoid the bodies need to turn catabolic?
I will note when I was speaking of digestion rates I am referring to those who feel that the excess it pointless.
First I think absorb is the wrong word, it implys that the rest will be wasted, which we knwo is not true, while it may not be taken up into the muscles it will be used for energy in one form or another.
Now, the body will absorb nutrients at a given rate, so if you have a slow digesting protein of 100grams in one meal and you can utilize 20grams per hour you will inevitably use all of that protein if it takes 5 hours to digest and it will be used to fuel the muscle. if you have a protein that is absorbed in 1hour and has 100grams you will only utilized 20 grams and the rest will be stored and broken down for other use.
All of it is absorbed but it may not be utilized. For me digestion rates still matter overall mainly because it means less it stored as excess, however my thinking is if you stick to daily caloric needs it may not matter, however you already have a few hundred grams stored in the body of glucose if this is used before breaking down fat. So my thinking here is if you eat a big meal over what the body can unitize the excess is stored as fat, now if we stop eating the body than uses its glucose stores which are already full before breaking down fat. So you are not using the food you ate and the fat you just stored later on. So we have just put on fat and burnt glucose stores. However as I mentioned I need to look into the process in which the body obtains fuel during fasting to see if it is offset.
Waiting your reply as always
