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Primary Benefits of IGF-1 for Men Muscle Growth and Strength: IGF-1 directly stimulates muscle protein synthesis, making it highly effective for men looking to build or maintain lean muscle mass

[DOI] [PMC free article] [PubMed] [Google Scholar] Mallinson JE, Constantin-Teodosiu D, Sidaway J, Westwood FR, Greenhaff PL, 2009

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Some scientific publications also consider DSIP as a co-regulator of other neurohormonal systems, including somatotropin, prolactin, and ACTH, especially in the context of adaptation to physical exertion, overtraining, and chronic stress