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    Default Portion Size and Anabolism

    Pretty interesting study about portion size and anabolism in both young people and the elderly. Researchers compared changes in muscle protein synthesis(MPS) and anabolic efficiency in response to a meal either containing 30g protein or 90g of protein, all from 90% lean beef.

    They study showed that there was no difference in MPS in either group, both yielding a ~50% increase. Worth noting, the 30g serving contains 10g of EAA, which has previously been shown to elicit maximum stimulatory effect on MPS, while the 90g serving contains 30g of EAA. Also worth mentioning, the increase in MPS in both the young and elderly were approximately the same, which also shows the importance of EAA for fighting sarcopenia. I have been a huge advocate of EAA for a long time, as the name implies they are essential, not only bc our bodies don't produce them, but also to many biological processes, enzyme formation, and most important BUILDING MUSCLE TISSUE. You can increase MPS all day, but without the right substrates(EAA) you won’t build much muscle. Yes, Leucine is the key regulator for the mTOR pathway of MPS, but EAA seem to play a significant role as well. I always add 10g of EAA to any preworkout concoction I make.
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    Quote Originally Posted by drtbear1967 View Post
    Pretty interesting study about portion size and anabolism in both young people and the elderly. Researchers compared changes in muscle protein synthesis(MPS) and anabolic efficiency in response to a meal either containing 30g protein or 90g of protein, all from 90% lean beef.

    They study showed that there was no difference in MPS in either group, both yielding a ~50% increase. Worth noting, the 30g serving contains 10g of EAA, which has previously been shown to elicit maximum stimulatory effect on MPS, while the 90g serving contains 30g of EAA. Also worth mentioning, the increase in MPS in both the young and elderly were approximately the same, which also shows the importance of EAA for fighting sarcopenia. I have been a huge advocate of EAA for a long time, as the name implies they are essential, not only bc our bodies don't produce them, but also to many biological processes, enzyme formation, and most important BUILDING MUSCLE TISSUE. You can increase MPS all day, but without the right substrates(EAA) you won’t build much muscle. Yes, Leucine is the key regulator for the mTOR pathway of MPS, but EAA seem to play a significant role as well. I always add 10g of EAA to any preworkout concoction I make.
    I’ve read about this too. 30g at a time is best


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