Protein
Collagen
Collagen is the main structural protein in skin, bone, tendons and cartilage. Supplements usually contain hydrolyzed collagen from cattle, pigs or fish.
Also listed as collagen peptides, hydrolyzed collagen, multi collagen, bovine collagen
Do you need collagen-rich foods?
Collagen occurs in animal skin and connective tissue and is used to make gelatin. The body can build collagen from amino acids, with vitamin C and other nutrients involved, so eating collagen itself is not necessary. A food’s collagen content is not a tested dose of a particular supplement. 1