The LR3 extension does not make it "safer" -- it makes it longer-acting and less regulated by binding proteins, which from a risk standpoint means sustained free IGF-1R activation without the IGFBP buffering system that modulates native IGF-1 activity in healthy physiology
Additionally, fresh, unprocessed meats, fish, and eggs provide glutathione, while raw dairy and whey protein contribute to glutathione production due to their high cysteine content, a key precursor in glutathione synthesis
Your improved insulin sensitivity, altered lipid metabolism, and reduced appetite do not snap back to baseline the moment the molecule clears
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Chem Biol Interact 1991
The sections that follow apply this framework to specific physiological domains, beginning with metabolic and energy-balance peptides beyond the incretin family