The peptide's four-residue structure makes it one of the smallest bioactive peptides studied in longevity research, and its compact size contributes to favorable pharmacokinetic properties including rapid absorption from subcutaneous injection sites
Barnett C, Costill DL, Vukovich MD, Cole KJ, Goodpaster BH, Trappe SW, Fink WJ
Bedaiwy MA, Falcone T, Mohamed MS, Aleem AA, Sharma RK, Worley SE, Thornton J, Agarwal A
doi: 10.1056/NEJMra1910234 7 FranciosiANRalphJO'FarrellNJBuckleyCGulmannCO'KaneMet al
These foods include beans, nuts, seeds, whole grains, leafy greens, milk, yogurt and other dairy products