Best time to take growth hormone? , Most athletes use it on an empty stomach, with the most common timing about an hour before bed., Consistency and timing make the difference., Watch the full IGF 1 LR3 Dosage: What to Know About Dosing, Safety, and Clinical Use The GH IGF 1 axis in ageing and longevity Nature Reviews Endocrinology IGF 1, the Cross Road of the Nutritional, Inflammatory and Hormonal Pathways to Frailty Attenuated glucose stimulated insulin secretion during an acute IGF 1 LR3 infusion into fetal sheep does not persist in isolated islets Journal of Developmental Origins of Health and Disease Cambridge Core