Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Cartilage is a connective tissue found in various parts of the human body, including joints, the rib cage, ear, nose, bronchial tubes, and intervertebral discs. Its primary function in the structural system (musculoskeletal system) is to provide support, flexibility, and smooth surfaces for articulation, which facilitates movement and absorbs mechanical stress. Scientific research validates the critical role of cartilage in joint health. For example, articular cartilage covers the ends of bones in synovial joints and is essential for pain-free movement and shock absorption. Loss or degeneration of cartilage, as seen in osteoarthritis, leads to joint pain, stiffness, and reduced mobility, underscoring its importance in structural support.

In terms of supplementation or therapeutic use, products such as shark cartilage and bovine cartilage have been marketed for joint health. However, the evidence supporting oral cartilage supplements for improving joint structure or function in humans is limited and inconclusive. Most scientific validation pertains to the biological function of endogenous cartilage, not the efficacy of cartilage as a supplement. Current clinical guidelines do not generally recommend cartilage supplements for bone or joint health due to insufficient and inconsistent data. In summary, while scientific evidence robustly supports the role of cartilage in structural support within the body, the use of supplemental cartilage for enhancing the structural system is not strongly validated.

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