Collagen consists of three long chains of over 1,000 amino acids each. These are winded together to form a triple helix, a unique structure in biology, that enables the building of elongated fibrils. Collagen’s atypical amino acid composition is characterized by a high content of hydroxyproline, glycine and proline. 28 types of collagen have been identified. They occur in different parts of the body and are classified in several groups, according to the structures they form, either fibrillar (Type I, II, III, V, XI) or non-fibrillar (most of the other types). Collagen, people and history Collagen has a long history of use. Centuries ago, people extracted it from bovine or porcine bone broth, seeking to use every part of the animal and waste nothing. Our ancestors also quickly understood the value of this protein. In the 12th century, abbess and scholar Hildegard von Bingen advised people to get relief from joint complaints by taking broth made from calves’ feet—a rich source of collagen. Napoleon is also believed to have been a big fan, supplying his troops with this nutritious ingredient.

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