Gut derived IL 13 contributes to growth via promoting hepatic IGF 1 production Microbiome Springer Nature Link I am injecting IGF 1 LR3 to myself. I have experienced some side effects that I want to reduce to zero. If you have injected IGF 1 or have any other experience with intramuscular GLP 1 Drugs Could Raise the Risk of Weaker Bones and Gout 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 Injecting IGF1 LR3 directly into the muscle your training : r nattyorjuice IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society