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Wasted protein?

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Posted by: Michael D

Ok. I see that your body can only use a certain amount of protein at once. Let's say it is 40 grams. And lets say I eat 60 at a meal. Will 20 be lost? Or will I still get the 80 calories from 20 grams over 40?


Posted by: nR_Kris

O_o good Q ???


Posted by: rockcrest

Quote:
Originally posted by nR_Kris
O_o good Q ???

werd..i'm curious now too.


Posted by: calalily1972

As I recall your body can't process much more than 50G at one time.


Posted by: Vieope

I think that nobody can say how much you can take at one sitting, the "everybody is different theory" comes to play again, 50g does sound a good number.


Posted by: Fit Freak

BUT...your body will still use the calories...either as glucose or to be stored as fat (lipogenisis).

Basically, excess amino acids (breakdown component of protein) gets converted to pyruvate and then Acetyl CoA to enter the Krebs cycle.

Protein can serve as a source for blood glucose, glycogen storage, as well as fat storage in adipose tissue. It just takes extra steps. In doing so your body uses about 20% of the calories for themrogenesis.


Posted by: Michael D

Ok fitfreak, that is what I needed to know. Although I may not use all the protein as protein, I will still use it as calories.


Posted by: physicallyelite

Quote:
Originally posted by Michael D
Ok. I see that your body can only use a certain amount of protein at once. Let's say it is 40 grams. And lets say I eat 60 at a meal. Will 20 be lost? Or will I still get the 80 calories from 20 grams over 40?

Your body (small intestines) can absorb more than 40 grams of protein per meal. The maximal amount of protein that can be absorbed each day is between 500-700 grams which puts to rest the belief only a small amount can absorbed at a time.

Don't worry about wasted protein and instead determine how much protein you need to eat each day to meet your goals and make sure you get this amount everyday preferably over 5-5 meals. A good starting point if you are lifting weights and want to build muscle and/or lose fat is .8 grams of protein per pound of bodyweight daily.


Posted by: Fit Freak

No problem...cals do get used....BIOCHEMISTRY prooves this...contrary to what some people"read".


Posted by: OmarJackson

obviously not all protein that you eat goes into generating new muscle or upkeeping your current muscles, some is going to be used for energy now and some will be stored as fat for energy later.


Posted by: LAM

there is no such max amount of protein...

remember that digestion is not the same as utilization. the digestive system will process whatever amount of protein is ingested. but how much of that protein is utilized depends on the protein requirements of that individual.

the body of 300 lb BB'er needs and can utilize far more protein than a 150 lb pencil pusher who does no exercise.


Posted by: aztecwolf

Quote:
Originally posted by LAM
there is no such max amount of protein...

remember that digestion is not the same as utilization. the digestive system will process whatever amount of protein is ingested. but how much of that protein is utilized depends on the protein requirements of that individual.

the body of 300 lb BB'er needs and can utilize far more protein than a 150 lb pencil pusher who does no exercise.
geez i only weigh 10 lbs more then mr. pencil pusher


Posted by: PreMier

Quote:
Originally posted by Fit Freak
BUT...your body will still use the calories...either as glucose or to be stored as fat (lipogenisis).
Sorry... but I think you shit the rest out.


Posted by: Vieope

Quote:
Originally posted by PreMier
Sorry... but I think you shit the rest out.
Yeah!


Posted by: ah1

Just reading this article may help?
http://www.ast-ss.com/articles/article.asp?AID=220


Posted by: Fit Freak

Your article is not peer reviewed...I didn't even read it...it's written by a supplement company

Go read a biochemistry textbook...protein calories are converted into pyruvate and Acetyl Coenzyme A to enter the Krebs cycle to produce NADH or FADH to enter oxidative phosphorylation (to yield energy / ATP) or used for lipolysis / fat sythesis (fat storage) or to be used as amino acids for protein synthesis.

Of course some of the protein is broken down into ammonium and ketone bodies and ultimately excreted in urea but what you said is false...you don't just use it for muscles then shit the rest out.

Sorry if you were being sarcastic...but I provided the info either way


Posted by: Vieope

Yesterday, I was having a tasteful discussion with Premier about shit and its formation, anyway ..
We agreed that it is formed by the macronutrients that we donīt use. What is your theory about it ?


Posted by: LAM

Quote:
Originally posted by aztecwolf
geez i only weigh 10 lbs more then mr. pencil pusher
get a grip, it's called an example...

the bodybuilder has:

#1). a higher protein turn-over due to his level of activity
#2). a higher need for protein due to the amount of LBM that he has and his level of anabolic activity

Basic human physiology and logic dictates that the body of the much larger more active individual NEEDS and can UTILIZE more protein than a much smaller man with a much lower need for protein.

so 50 grams of protein in one meal may not be enough for a 300 lb BB with 264 lb of LBM. while 50 grams of protein for a 150 lb sedentary man whose protein needs are less than 100 grams a day, a meal with 50 grams of protein is probably far to much...


Posted by: BUSTINOUT

Quote:
Originally posted by LAM

the body of 300 lb BB'er needs and can utilize far more protein than a 150 lb pencil pusher who does no exercise.
Example or not...who the hell you calling a pencil pusher?!!! LOL How ya doing LAM?


Posted by: LAM

Quote:
Originally posted by BUSTINOUT
Example or not...who the hell you calling a pencil pusher?!!! LOL How ya doing LAM?
hey I don't even push pencils just buttons on a keyboard !

same shit different day, BO...


Posted by: aztecwolf

i know i was just playin even though i do weigh only 10 lbs more, my active lifestyle keeps my weight down a lot, for my protein i just try to get no more then 45 grams per meal and no less then 30 grams per meal spread out over 6 feedins







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