When collagen protein first hit the market as a product athletes and gym-goers alike may get their fingers on, Dr. Layne Norton was skeptical of its efficacy. In keeping with the American Journal of Medical Diet, “supplementation with whey protein elicited higher will increase in each acute and longer-term muscle protein synthesis than collagen protein supplementation,” suggesting that the previous is simpler for “skeletal muscle retention.” (1)
Norton notes that that is due to how rather more leucine is in whey protein versus collagen protein — four.9 to zero.9. For reference, leucine is the amino acid that promotes power metabolism for protein synthesis. (2) On Aug. 23, 2023, Norton revealed a video on his YouTube channel that particulars the findings of Might 2023 analysis in Drugs and Science in Sports activities and Train associated to the efficacy of collagen protein for muscle connective protein synthesis (i.e., selling the well being of connective tissue reasonably than muscle progress). Test it out beneath:
Spoiler alert: The findings have been that neither collagen protein nor whey protein elevated muscle connective protein synthesis charges. (three)
Proper off the bat, Norton defined the findings of the examine confirmed that whey protein promotes muscle protein synthesis whereas collagen protein didn’t, regardless of the assorted female and male individuals within the examine receiving a 30-gram dose of every for post-exercise restoration.
Norton was unsurprised by the outcomes of the examine because of the lack of adequate leucine in collagen protein, explaining that when a protein is damaged down throughout digestion, the composition of that protein is what ends in the bloodstream. When absorbing vitamins throughout digestion, the physique doesn’t acknowledge protein however reasonably the amino acids that comprise that protein. For the needs of muscle protein synthesis, the requisite amino acid is leucine.
With out the presence of an amino acid in collagen protein that has been proven to advertise muscle connective tissue, supplementing with collagen protein will unlikely have such an impact.
Oikawa, S. Y., Kamal, M. J., Webb, E. Ok., McGlory, C., Baker, S. Ok., & Phillips, S. M. (2020). Whey protein however not collagen peptides stimulate acute and longer-term muscle protein synthesis with and with out resistance train in wholesome older girls: a randomized managed trial. The American journal of medical vitamin, 111(three), 708–718. https://doi.org/10.1093/ajcn/nqz332
Duan, Y., Li, F., Li, Y., Tang, Y., Kong, X., Feng, Z., Anthony, T. G., Watford, M., Hou, Y., Wu, G., & Yin, Y. (2016). The position of leucine and its metabolites in protein and power metabolism. Amino acids, 48(1), 41–51. https://doi.org/10.1007/s00726-015-2067-1
Aussieker, T., Hilkens, L., Holwerda, A. M., Fuchs, C. J., Houben, L. H. P., Senden, J. M., van Dijk, J. W., Snijders, T., & van Loon, L. J. C. (2023). Collagen Protein Ingestion throughout Restoration from Train Does Not Enhance Muscle Connective Protein Synthesis Charges. Drugs and science in sports activities and train, 10.1249/MSS.0000000000003214. Advance on-line publication. https://doi.org/10.1249/MSS.0000000000003214