Collagen

Collagen is the main structural protein found in the connective tissues of animals, such as tendons, ligaments, skin, and bones. It is typically extracted from animal sources like cattle hides, pig skin, and fish scales through processes involving hydrolysis.

Collagen is often added to foods and supplements for its perceived benefits for skin, hair, nails, and joints, and as a source of protein. It can be found in protein bars, bodybuilding supplements, and some processed meat products.

Collagen is not currently listed as an authorised food additive on the Register of Food Additive Authorisations in the UK. It is considered a food ingredient or supplement. Research into the health effects of collagen supplementation is ongoing, with some studies suggesting potential benefits for joint health and skin hydration, while others show no significant effect. EFSA has not evaluated collagen as a food additive. There is no widespread controversy, but the scientific evidence for specific health claims is still developing.