Explanation, Benefits, and Dosing for IGF LR3 Wittmer Rejuvenation Clinic IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society Dietary and pharmacological modification of the insulin IGF 1 system: exploiting the full repertoire against cancer Oncogenesis Also, carbs play a big role in IGF 1. They raise insulin, which helps your body produce and use IGF 1 more effectively. When carbs are too low for too long, that whole system slows down, your