Gut derived IL 13 contributes to growth via promoting hepatic IGF 1 production Microbiome Springer Nature Link IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society IGF 1 Facilitates Cartilage Reconstruction by Regulating PI3K AKT, MAP JIR Dove Medical Press Most people think all peptides = fat loss., Thats not even close., IGF 1 LR3 isnt about burning tissue its about building it., This is the signal that tells muscle fibers to:, Recover faster, IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society