Animal part or source
Gelatin
Gelatin is a protein made by processing collagen from animal skin, bones and connective tissue. It dissolves when heated and sets into a gel when cooled.
Gelatin or collagen peptides?
Gelatin and hydrolyzed collagen were separate interventions in the 2019 trial. Both raised circulating amino acids, but the experiment did not establish that either product improves recovery. A product’s name alone cannot bridge that gap. 1