Protein eaten before bed is not fully digested

JudoJosh

JudoJosh

Pro Virili Parte
MYTH!

Protein Ingestion Prior To Sleep Improves Post-Exercise Overnight Recovery

INTRODUCTION: The role of nutrition in modulating post-exercise overnight recovery remains to be elucidated. We assessed the impact of protein ingestion immediately prior to sleep on digestion and absorption kinetics and protein metabolism during overnight recovery from a single bout of resistance type exercise.

METHODS: 16 healthy young males performed a single bout of resistance type exercise in the evening (20:00) after a full day of dietary standardization. All subjects were provided with appropriate recovery nutrition (20 g protein, 60 g carbohydrate) immediately after exercise (21:00). Thereafter, 30 min prior to sleep (23:30 h) subjects ingested a beverage with (PRO) or without (PLA) 40 g specifically produced intrinsically [1-C]phenylalanine labeled casein protein. Continuous intravenous infusions with [ring-H5]phenylalanine and [ring-H2]tyrosine were applied with blood and muscle samples collected to assess protein digestion and absorption kinetics, whole-body protein balance and mixed muscle protein synthesis rates throughout the night (7.5 h).

RESULTS: During sleep casein protein was effectively digested and absorbed resulting in a rapid rise in circulating amino acid levels which were sustained throughout the remainder of the night. Protein ingestion prior to sleep increased whole-body protein synthesis rates (311±8 vs 246±9 &sim;mol·kg·7.5 h ) and improved net protein balance (61±5 vs -11±6 &mu;mol·kg·7.5 h ) in the PRO vs PLA experiment, respectively; P<0.01). Mixed muscle protein synthesis rates were &sim;22% higher in the PRO vs PLA experiment, which reached borderline significance (0.059±0.005 vs 0.048±0.004 %·h; P=0.05).

CONCLUSION: This is the first study to show that protein ingested immediately prior to sleep is effectively digested and absorbed, thereby stimulating muscle protein synthesis and improving whole-body protein balance during post-exercise, overnight recovery.
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Not only was the protein fully digested and absorbed but it also increased protein synthesis levels
 
EBF Inc said:
id go with a casein hydrolysate pre bed personally
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why not micellar casien, hydrolyzed caisen is digested even more rapidly than whey make it less optimal before bed than a slower digesting protien, personally I'll just stick to my usual 8oz of steak or salmon.
 
What about this?

Continuous intravenous infusions with [ring-H5]phenylalanine and [ring-H2]tyrosine were applied with blood and muscle samples collected to assess protein digestion and absorption kinetics, whole-body protein balance and mixed muscle protein synthesis rates throughout the night (7.5 h).



What is the significance of this and what bearing does it have on the results of the study?
 
Oscar said:
why not micellar casien, hydrolyzed caisen is digested even more rapidly than whey make it less optimal before bed than a slower digesting protien, personally I'll just stick to my usual 8oz of steak or salmon.
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Higher spike and quicker during peak of leptin an drop of cortisol may aid the recovery mote
 
T-Bone said:
What about this?

Continuous intravenous infusions with [ring-H5]phenylalanine and [ring-H2]tyrosine were applied with blood and muscle samples collected to assess protein digestion and absorption kinetics, whole-body protein balance and mixed muscle protein synthesis rates throughout the night (7.5 h).



What is the significance of this and what bearing does it have on the results of the study?
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I believe this was used to measure the benefits and not used for feeding.
 
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