+**Collagen** is the body's most abundant [protein](/wiki/protein), a foundational fiber that gives strength and structure to [connective tissue](/wiki/connective_tissue). It acts as the scaffold for skin, bones, tendons, and cartilage, essential for their integrity and elasticity.
+## See also
+- [Amino Acid](/wiki/amino_acid)
+- [Skin](/wiki/skin)
+- [Bone](/wiki/bone)
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