Before & After 3 years apart. The gym hasn't just changed my appearance, it's changed everything. I'm very thankful I found it (and this sub!) : r veganfitness Organ weights in response to Long R3 insulin like growth factor 1 (LR3 Download Scientific Diagram Gut derived IL 13 contributes to growth via promoting hepatic IGF 1 production Microbiome Springer Nature Link IGF 1 LR3 The Muscle Building Peptide Everyone's Talking About IGF 1 LR3 is one of the most powerful performance peptides used for muscle growth, recovery, and fat loss. It's a modified version IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society