The TGF-/Nodal subfamily encompasses TGF-1, TGF-2, TGF-3, Nodal, Activins, growth differentiation factors (GDFs), Inhibin (which counteracts activin receptors), and Lefty1 and Lefty2 (which inhibit Nodal co-receptors)
It acts through the growth hormone secretagogue receptor (GHS-R1a) to enhance GH pulses
The compound stack exists to enable progressive resistance training during caloric deficit
What to do: Eat foods high in probiotic fibers and starches like legumes, kiwi, and overnight oats
Phase 3 Trial Results: TRIUMPH Program Eli Lilly's Phase 3 program, called TRIUMPH, includes multiple trials testing retatrutide in different populations
Threadlifting and radiofrequency skin tightening (Thermage, Ultherapy) address skin laxity but do not restore lost volume