PreMier said:
But your sleeping for 8 hours.. liquids digest too fast no?
more to it than just digestion. the rate at which proteins are modulated is also a big factor. this is the actuall speed at wich amino acids are released into the portal bloodstream. a decent protein shake with sufficient caesin will peak blood concentration amino acid levels at about the 2 hour mark and sustain for up to 7 hours.
here are 21 studies which show why caesin is superior than whey for night time use to combat catabolism and for overall fat loss
#1.
Slow and fast dietary proteins differently modulate postprandial protein accretion.
Boirie Y, Dangin M, Gachon P, Vasson MP, Maubois JL, Beaufrere B.
Laboratoire de Nutrition Humaine, Universite Clermont Auvergne, Centre de Recherche en Nutrition Humaine, BP 321, 63009 Clermont-Ferrand Cedex 1, France.
The speed of absorption of dietary amino acids by the gut varies according to the type of ingested dietary protein. This could affect postprandial protein synthesis, breakdown, and deposition. To test this hypothesis, two intrinsically 13C-leucine-labeled milk proteins, casein (CAS) and whey protein (WP), of different physicochemical properties were ingested as one single meal by healthy adults. Postprandial whole body leucine kinetics were assessed by using a dual tracer methodology. WP induced a dramatic but short increase of plasma amino acids. CAS induced a prolonged plateau of moderate hyperaminoacidemia, probably because of a slow gastric emptying. Whole body protein breakdown was inhibited by 34% after CAS ingestion but not after WP ingestion. Postprandial protein synthesis was stimulated by 68% with the WP meal and to a lesser extent (+31%) with the CAS meal. Postprandial whole body leucine oxidation over 7 h was lower with CAS (272 +/- 91 micromol.kg-1) than with WP (373 +/- 56 micromol.kg-1). Leucine intake was identical in both meals (380 micromol.kg-1). Therefore, net leucine balance over the 7 h after the meal was more positive with CAS than with WP (P < 0.05, WP vs. CAS).
In conclusion, the speed of protein digestion and amino acid absorption from the gut has a major effect on whole body protein anabolism after one single meal. By analogy with carbohydrate metabolism, slow and fast proteins modulate the postprandial metabolic response, a concept to be applied to wasting situations.
PMID: 9405716 [PubMed - indexed for MEDLINE]
#2.
Effect of a hypocaloric diet, increased protein intake and resistance training on lean mass gains and fat mass loss in overweight police officers.
Demling RH, DeSanti L.
Brigham and Women's Hospital, Boston, MA 02115, USA.
rhdemling@partners.org
We compare the effects of a moderate hypocaloric, high-protein diet and resistance training, using two different protein supplements, versus hypocaloric diet alone on body compositional changes in overweight police officers. A randomized, prospective 12-week study was performed comparing the changes in body composition produced by three different treatment modalities in three study groups. One group (n = 10) was placed on a nonlipogenic, hypocaloric diet alone (80% of predicted needs). A second group (n = 14) was placed on the hypocaloric diet plus resistance exercise plus a high-protein intake (1.5 g/kg/day) using a casein protein hydrolysate. In the third group (n = 14) treatment was identical to the second, except for the use of a whey protein hydrolysate. We found that weight loss was approximately 2.5 kg in all three groups. Mean percent body fat with diet alone decreased from a baseline of 27 +/- 1.8 to 25 +/- 1.3% at 12 weeks. With diet, exercise and casein the decrease was from 26 +/- 1.7 to 18 +/- 1.1% and with diet, exercise and whey protein the decrease was from 27 +/- 1.6 to 23 +/- 1.3%. The mean fat loss was 2. 5 +/- 0.6, 7.0 +/- 2.1 and 4.2 +/- 0.9 kg in the three groups, respectively. Lean mass gains in the three groups did not change for diet alone, versus gains of 4 +/- 1.4 and 2 +/- 0.7 kg in the casein and whey groups, respectively. Mean increase in strength for chest, shoulder and legs was 59 +/- 9% for casein and 29 +/- 9% for whey, a significant group difference. This significant difference in body composition and strength is likely due to improved nitrogen retention and overall anticatabolic effects caused by the peptide components of the casein hydrolysate. Copyright 2000 S. Karger AG, Basel
Publication Types:
* Clinical Trial
* Randomized Controlled Trial
PMID: 10838463 [PubMed - indexed for MEDLINE]
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for me it's a no-brainer to use protein powders over whole foods at night time. they have a higher biological value are digested easier. you get more out of your money
* 3.5 oz of lean beef = 1.7 grams of Leucine
107 cals, 19 grams protein, 0 carbs, 3 grams fat
* 1/3 cup caesin = 2.6 grams of leucine
110 cals, 26 grams protein, 0 carbs, 0 fat
powdered caesin has more of the anti-catabolic amino acid leucine, is cheaper and saves time in the kitchen
As is walnuts, linseeds, almonds, olive oil or fish oil caps.
