Casein absorbtion rate

[First6]

Any studies on (or does anyone know) how long it takes to digest casein?
Just trying to understand how long it stays with me through the night.
Thanks

[LatissimusaurousRex]

6-8 hours

[LatissimusaurousRex]

....

[First6]

Thanks

[M302_Imola]

FYI don't mix it with your whey after a workout as it will cause your whey to digest more slowly

I don't know about that...there have been studies showing whey + casein pwo is superior to just whey.

[Swifto]

I don't know about that...there have been studies showing whey + casein pwo is superior to just whey.

Correct.

Whey + caesin is better than either alone PWO.

Whey, casein etc... Hydrolysate, is worse than simple whey or casein. There is no difference in digestion speed comparing hydrolysates to regular whey/casein protein. You pay the extra price and get nothing apart from a hole in your wallet and bad taste in your mouth.

[First6]

Casein - $40 per 2lbs
Whey - $12 per 2 lbs

Right now I have no choice but to stick with Whey alone PWO. My casein is only for before bed at this point. No worries though. Good results are happening so i'm happy.

[mg1228]

i workout first thing-- my prewo is 1scoop whey 1sc casein 3/4cup oats 1/2tspn udos--same for pwo---i like it

[First6]

i workout first thing-- my prewo is 1scoop whey 1sc casein 3/4cup oats 1/2tspn udos--same for pwo---i like it

THE MAN weighs in! Thanks mg.
I'd do it. but like I said... Just can't spend the extra cash right now. Those darn kids! nobody told me they would eat so much! LOL

[mg1228]

u will b fine doin it that way---just fine

[Eddie_m63]

Casein - $40 per 2lbs
Whey - $12 per 2 lbs

Right now I have no choice but to stick with Whey alone PWO. My casein is only for before bed at this point. No worries though. Good results are happening so i'm happy.

Where do you get your stuff from?
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
i paid around 45 for 5lbs of whey

[Twist]

Correct.

Whey + caesin is better than either alone PWO.

Whey, casein etc... Hydrolysate, is worse than simple whey or casein. There is no difference in digestion speed comparing hydrolysates to regular whey/casein protein. You pay the extra price and get nothing apart from a hole in your wallet and bad taste in your mouth.

Got a source for your information bro?

[First6]

Where do you get your stuff from?
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
i paid around 45 for 5lbs of whey

Thanks for the linky on the casein. that is better than what I paid.
I paid about 40 for 2lbs at GNC. Sometimes they run a sale on the 4lb for 62.
Yours is 48 for 4lbs.
I get the whey at walmart Bro! (body fortress brand) Funny but it is cheap and the vanilla tastes fine. $12 for 2lbs

[caffeine_menace]

I get the whey at walmart Bro! (body fortress brand) Funny but it is cheap and the vanilla tastes fine. $12 for 2lbs

I use the same one but i always buy 2 at a time. 1 of vanilla and 1 of strawberry and mix the 2 in a bigger container...Damn it taste good that way....

[First6]

I use the same one but i always buy 2 at a time. 1 of vanilla and 1 of strawberry and mix the 2 in a bigger container...Damn it taste good that way....

Bro that is CRAZY! that is exactly what I did yesterday. What are the odds.
Stay away from the choc... nasty.

[dj_pacman51]

"Different protein sources can cause fermentation in the stomach OR allergies from peptides not being full broken down and leaking through the gut.

This would come from the different digestion times required to convert the entire food to chyme before moving through the pyloric valve and into the duodenum...so either releasing too late or too early."

I had a similar question regarding PWO nutrition. C BINO said it wasnt a good idea to mix them. Sounded good at the time so I dont mix them anymore lol. But idk. Everybody's saying different.

[Swifto]

Got a source for your information bro?

Lyle McDonald.

If you havent read any of his work. Here's some on nutrition, amino's etc...

http://www.bodyrecomposition.com/cat...rition/protein

[Swifto]

Lyle McDonald.

If you havent read any of his work. Here's some on nutrition, amino's etc...

http://www.bodyrecomposition.com/cat...rition/protein

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscl

--------------------------------------------------------------------------------
J Appl Physiol. 2009 Sep;107(3):987-92. Epub 2009 Jul 9.

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men.

Tang JE, Moore DR, Kujbida GW, Tarnopolsky MA, Phillips SM.

Department of Kinesiology-Exercise Metabolism Research Group, McMaster University, Hamilton, Ontario L8S 4K1, Canada.

This study was designed to compare the acute response of mixed muscle protein synthesis (MPS) to rapidly (i.e., whey hydrolysate and soy) and slowly (i.e., micellar casein) digested proteins both at rest and after resistance exercise. Three groups of healthy young men (n = 6 per group) performed a bout of unilateral leg resistance exercise followed by the consumption of a drink containing an equivalent content of essential amino acids (10 g) as either whey hydrolysate, micellar casein, or soy protein isolate. Mixed MPS was determined by a primed constant infusion of l-[ring-(13)C(6)]phenylalanine. Ingestion of whey protein resulted in a larger increase in blood essential amino acid, branched-chain amino acid, and leucine concentrations than either casein or soy (P < 0.05). Mixed MPS at rest (determined in the nonexercised leg) was higher with ingestion of faster proteins (whey = 0.091 +/- 0.015, soy = 0.078 +/- 0.014, casein = 0.047 +/- 0.008%/h); MPS after consumption of whey was approximately 93% greater than casein (P < 0.01) and approximately 18% greater than soy (P = 0.067). A similar result was observed after exercise (whey > soy > casein); MPS following whey consumption was approximately 122% greater than casein (P < 0.01) and 31% greater than soy (P < 0.05). MPS was also greater with soy consumption at rest (64%) and following resistance exercise (69%) compared with casein (both P < 0.01). We conclude that the feeding-induced simulation of MPS in young men is greater after whey hydrolysate or soy protein consumption than casein both at rest and after resistance exercise; moreover, despite both being fast proteins, whey hydrolysate stimulated MPS to a greater degree than soy after resistance exercise. These differences may be related to how quickly the proteins are digested (i.e., fast vs. slow) or possibly to small differences in leucine content of each protein.



For example, several studies have noted that “fast” proteins stimulate a
large rise in protein synthesis whereas “slow” proteins primarily
inhibit protein breakdown, but these results come from data
at the whole body level of which muscle comprises
only 25% and turns over at a much slower rate than, for
example, gut proteins. In addition, milk proteins
appear to support greater “peripheral” (i.e., muscle) vs.
splanchnic protein synthesis than do soy proteins.

Interestingly, when examining whole body leucine kinetics, prior studies actually found that casein consumption promoted a higher whole body leucine
balance than whey. While these findings may seem
contradictory to what we observed here, the inhibitory effect of
casein on protein breakdown, almost certainly in the splanchnic
region, was the largest contributor to the greater
whole body leucine balance observed.

In addition, the increase in whole body protein synthesis stimulated by whey was observed to be quite transient.

[caffeine_menace]

Bro that is CRAZY! that is exactly what I did yesterday. What are the odds.
Stay away from the choc... nasty.

Yeah ive been doin that for over 2 years now....lol....and yes the chocolate is not so good but better than other brands ive tasted....They do hav the cookies and cream from time to time and that one is good..

[frodo89]

A bit of topic guys, I normally take Optimum nutritions casein. But recently I seen dymatize bring out a casein (mixed with a bunch of other crap, I kid you not like 30 other ingredients of which one is micellular casein) that claims to stay in your system for 12 hours. I highly doubt it can stay in your system for that long, any of you guys had any experience with it

[LatissimusaurousRex]

unless you plan on sleeping for 12 straight hours I fail to see the point of the matter

[dsw222]

Casein - $40 per 2lbs
Whey - $12 per 2 lbs

Right now I have no choice but to stick with Whey alone PWO. My casein is only for before bed at this point. No worries though. Good results are happening so i'm happy.

wow horrible prices

True Protein... 7 bucks a pound for milk protein isolate (80% casein), and around 5 for whey concentrate

[frodo89]

unless you plan on sleeping for 12 straight hours I fail to see the point of the matter

As do I, then again if you sleep eight hours, wake up, cook (extra half hour) eat your food (15-30 mins) then get some digestion going an extra hour or two would be great as casein's absorption rate is about 7 to 8 hours. Then again like i said i highly doubt it stays with you for 12 hours

[LiftedDuramax2007]

good thread

[RoadToRecovery]

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscl

--------------------------------------------------------------------------------
J Appl Physiol. 2009 Sep;107(3):987-92. Epub 2009 Jul 9.

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men.

Tang JE, Moore DR, Kujbida GW, Tarnopolsky MA, Phillips SM.

Department of Kinesiology-Exercise Metabolism Research Group, McMaster University, Hamilton, Ontario L8S 4K1, Canada.

This study was designed to compare the acute response of mixed muscle protein synthesis (MPS) to rapidly (i.e., whey hydrolysate and soy) and slowly (i.e., micellar casein) digested proteins both at rest and after resistance exercise. Three groups of healthy young men (n = 6 per group) performed a bout of unilateral leg resistance exercise followed by the consumption of a drink containing an equivalent content of essential amino acids (10 g) as either whey hydrolysate, micellar casein, or soy protein isolate. Mixed MPS was determined by a primed constant infusion of l-[ring-(13)C(6)]phenylalanine. Ingestion of whey protein resulted in a larger increase in blood essential amino acid, branched-chain amino acid, and leucine concentrations than either casein or soy (P < 0.05). Mixed MPS at rest (determined in the nonexercised leg) was higher with ingestion of faster proteins (whey = 0.091 +/- 0.015, soy = 0.078 +/- 0.014, casein = 0.047 +/- 0.008%/h); MPS after consumption of whey was approximately 93% greater than casein (P < 0.01) and approximately 18% greater than soy (P = 0.067). A similar result was observed after exercise (whey > soy > casein); MPS following whey consumption was approximately 122% greater than casein (P < 0.01) and 31% greater than soy (P < 0.05). MPS was also greater with soy consumption at rest (64%) and following resistance exercise (69%) compared with casein (both P < 0.01). We conclude that the feeding-induced simulation of MPS in young men is greater after whey hydrolysate or soy protein consumption than casein both at rest and after resistance exercise; moreover, despite both being fast proteins, whey hydrolysate stimulated MPS to a greater degree than soy after resistance exercise. These differences may be related to how quickly the proteins are digested (i.e., fast vs. slow) or possibly to small differences in leucine content of each protein.



For example, several studies have noted that “fast” proteins stimulate a
large rise in protein synthesis whereas “slow” proteins primarily
inhibit protein breakdown, but these results come from data
at the whole body level of which muscle comprises
only 25% and turns over at a much slower rate than, for
example, gut proteins. In addition, milk proteins
appear to support greater “peripheral” (i.e., muscle) vs.
splanchnic protein synthesis than do soy proteins.

Interestingly, when examining whole body leucine kinetics, prior studies actually found that casein consumption promoted a higher whole body leucine
balance than whey. While these findings may seem
contradictory to what we observed here, the inhibitory effect of
casein on protein breakdown, almost certainly in the splanchnic
region, was the largest contributor to the greater
whole body leucine balance observed.

In addition, the increase in whole body protein synthesis stimulated by whey was observed to be quite transient.

Very informative post.

[First6]

Yeah ive been doin that for over 2 years now....lol....and yes the chocolate is not so good but better than other brands ive tasted....They do hav the cookies and cream from time to time and that one is good..

Haven't tried the cook n cream... got a good thing going with the van/straw miw. maybe someday.. lol

[First6]

A bit of topic guys, I normally take Optimum nutritions casein. But recently I seen dymatize bring out a casein (mixed with a bunch of other crap, I kid you not like 30 other ingredients of which one is micellular casein) that claims to stay in your system for 12 hours. I highly doubt it can stay in your system for that long, any of you guys had any experience with it

unless you plan on sleeping for 12 straight hours I fail to see the point of the matter

I have not seen that...but gotta go with LatRex on this one.

[First6]

wow horrible prices

True Protein... 7 bucks a pound for milk protein isolate (80% casein), and around 5 for whey concentrate

let us know where your getting it. (do prefer 100% casein though)

[First6]

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscl

--------------------------------------------------------------------------------
J Appl Physiol. 2009 Sep;107(3):987-92. Epub 2009 Jul 9.

Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men.

Tang JE, Moore DR, Kujbida GW, Tarnopolsky MA, Phillips SM.

Department of Kinesiology-Exercise Metabolism Research Group, McMaster University, Hamilton, Ontario L8S 4K1, Canada.

This study was designed to compare the acute response of mixed muscle protein synthesis (MPS) to rapidly (i.e., whey hydrolysate and soy) and slowly (i.e., micellar casein) digested proteins both at rest and after resistance exercise. Three groups of healthy young men (n = 6 per group) performed a bout of unilateral leg resistance exercise followed by the consumption of a drink containing an equivalent content of essential amino acids (10 g) as either whey hydrolysate, micellar casein, or soy protein isolate. Mixed MPS was determined by a primed constant infusion of l-[ring-(13)C(6)]phenylalanine. Ingestion of whey protein resulted in a larger increase in blood essential amino acid, branched-chain amino acid, and leucine concentrations than either casein or soy (P < 0.05). Mixed MPS at rest (determined in the nonexercised leg) was higher with ingestion of faster proteins (whey = 0.091 +/- 0.015, soy = 0.078 +/- 0.014, casein = 0.047 +/- 0.008%/h); MPS after consumption of whey was approximately 93% greater than casein (P < 0.01) and approximately 18% greater than soy (P = 0.067). A similar result was observed after exercise (whey > soy > casein); MPS following whey consumption was approximately 122% greater than casein (P < 0.01) and 31% greater than soy (P < 0.05). MPS was also greater with soy consumption at rest (64%) and following resistance exercise (69%) compared with casein (both P < 0.01). We conclude that the feeding-induced simulation of MPS in young men is greater after whey hydrolysate or soy protein consumption than casein both at rest and after resistance exercise; moreover, despite both being fast proteins, whey hydrolysate stimulated MPS to a greater degree than soy after resistance exercise. These differences may be related to how quickly the proteins are digested (i.e., fast vs. slow) or possibly to small differences in leucine content of each protein.



For example, several studies have noted that “fast” proteins stimulate a
large rise in protein synthesis whereas “slow” proteins primarily
inhibit protein breakdown, but these results come from data
at the whole body level of which muscle comprises
only 25% and turns over at a much slower rate than, for
example, gut proteins. In addition, milk proteins
appear to support greater “peripheral” (i.e., muscle) vs.
splanchnic protein synthesis than do soy proteins.

Interestingly, when examining whole body leucine kinetics, prior studies actually found that casein consumption promoted a higher whole body leucine
balance than whey. While these findings may seem
contradictory to what we observed here, the inhibitory effect of
casein on protein breakdown, almost certainly in the splanchnic
region, was the largest contributor to the greater
whole body leucine balance observed.

In addition, the increase in whole body protein synthesis stimulated by whey was observed to be quite transient.

Great post! Thanks