Gelatin is a pure, natural protein, designed by nature. It is extracted from collagen, a natural protein found in animal bones and skin - generally beef and pork, and sometimes also fish (skin) and chicken (bones). Gelatin is a food ingredient, not a food additive. It is non-allergenic and E-number free.
Gelatin is composed of more than 85% protein, less than 13% water and less than 2% minerals. It contains 18 different amino acids, including 8 out of the 9 essential amino acids, the exception being tryptophan.