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.
Food texture is a different question
Gelatin is used in food manufacturing as well as pharmaceutical products. Mammalian and fish sources exist, and their properties differ. Its useful role in a recipe does not establish a treatment effect. 1
Sources
- Collagen and Gelatin 2015