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doi: 10.1111/j.1572-0241.2007.01774.x 165 HaukelandJWDamsJKKonopskiZLbergEMHaalandTGoverudIet al
Evidence Quality and Research Limitations Most nootropic peptide research currently consists of: Animal studies (rodents primarily) with limited human data Small human trials, often from Russia and Eastern Europe Lack of large-scale, Western double-blind RCTs for most peptides Variable quality control in available research products No FDA approval for cognitive enhancement indications For researchers comparing compounds or suppliers, evidence quality matters as much as mechanism speculation
GH pulses lead to hepatic IGF-1 secretion, which stimulates myogenesis and hypertrophy, particularly under resistance training conditions. Thorner et al., Nature Reviews Endocrinology 5
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