Casein nicht der Burner

[Franz]

http://journals.cambridge.org/download.php?file=%2FPNS%2FPNS70_01%2FS00296651100 0399Xa.pdf&code=bd16df1a65fa967c388169c5ae3c5095

Lest euch doch bitte mal den letzten Abschnitt auf Seite 102, links durch:
http://journals.cambridge.org/download.php?file=%2FPNS%2FPNS70_01%2FS00296651100 0399Xa.pdf&code=48e5700972fcde23b810d4d41529542f

Es wurden Messungen des gesamtkörperlichen Proteins vorgenommen, obwohl das Muskelprotein nur zu etwa 25 % zum gesamtkörperlichen „Turnover“ beiträgt. Allerdings ist der Proteinumschlag in der Muskulatur bedeutend langsamer; deshalb sorgt Casein schlicht dafür, dass es die Muskeln schlechter ernährt, als dies Whey könnte und dass die Innenorgane dafür schön wachsen, die Taille verbreitern können.

Diese Gedankengänge werden die Diskussion um die Frage, ob Whey das Beste aller Proteine sei, aus einer ganz anderen Richtung befeuern. In meinen Augen zeichnet sich Whey dabei immer mehr als Gewinner ab.

[Pustekuchen]

Lest euch doch bitte mal den letzten Abschnitt auf Seite 102, links durch (*)


When comparing the digestion of individual proteins contained within milk, we observed that whey, as a hydrolysed protein, resulted in a pronounced and rapid hyperaminoacidemia and leucinemia compared to both isonitrogenous quantities of soya and casein. While all of these proteins have excellent PDCAAS scores (whey = 1.15, casein = 1.23 and soya = 1.04), and are thus considered complete, the pattern of aminoacidemia and, in particular, leucinemia affected the rise in resting and post- prandial MPS. Specifically, whey and soya promoted increases in resting MPS that were greater than soya, but increments in post-resistance exercise MPS were greater in whey than both soya and casein(32). These findings are different than those seen with whole-body measure- ments(40,41), but it needs to be realised that only 25% of the whole-body response is due to muscle protein and acute changes in whole-body protein turnover with feeding will reflect the much more rapidly turning over proteins of the gut(42) and not those in muscle. This is an important point and one that underpins why some have concluded that whey protein cannot sustain an anabolic response com- pared to more slowly digested proteins(29) (casein or milk proteins). Recently, we reviewed the evidence for the efficacy of whey as exercise supplement in supporting resistance training-induced gains in lean mass and found that milk proteins and particularly whey were more effec- tive than carbohydrate or soya supplements(43).

Es geht um die Verwertung von Protein in den Organen und wie die Muscle Protein Synthesis (MPS) gemessen wird, nicht darum, dass deine Organe unterschiedlich wachsen.