Organ weights in response to Long R3 insulin like growth factor 1 (LR3 Download Scientific Diagram Follow for more info on how to optimize your body. IGF 1 LR3 is one of the most misunderstood compounds in the entire space. People either treat it like a magic shortcut or IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society QK041 Recombinant human bovine porcine IGF 1 LR3 protein LONG R IGF I Insulin IGF 1 signaling promotes immunosuppression via the STAT3 pathway: impact on the aging process and age related diseases Inflammation Research Springer Nature Link