MK-677 (Ibutamoren) 2026 Guide: Nass Trial Data, FDA Safety Alerts & GH Comparisons

MK-677 isn't a peptide — it's an oral ghrelin receptor agonist. Here's what the only 2-year human trial shows, why the FDA escalated enforcement in 2025-2026, and how it stacks up against CJC-1295/Ipamorelin.