Collagen and gelatin are very different but similar. Collagen components impact structural (joint) support and come in several types. Gelatin is used to build food structure and softness and comes in several types. Collagen is found in the skin, bone and connective tissues of many species. Gelatin is a class of protein derived from collagen and is also found in the skin and bones of pigs, cattle and several fish. They have some similar origins but are different.
Both are widely used in foods and supplements, yet for AAFCO (the Association of American Feed Control Officials), collagen is not an approved term and must be relegated to health remedy products. Gelatin types must be declared on food and treat packaging. Both are safe. Both are edible and offer nutritional content. Both are very important in building products for pets bringing nutritional (structure-function), product and various health benefits. Interestingly, important health benefits found in types of collagen may be delivered in capsules made of gelatin.
