Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Cartilage is a connective tissue found in various parts of the body, including joints, the rib cage, ear, nose, bronchial tubes, and intervertebral discs. Its role in directly supporting the skeletal system is well-established anatomically, as it provides cushioning, reduces friction, and enables smooth articulation between bones. In the context of supplementation or therapeutic interventions (such as bovine or shark cartilage supplements), the evidence supporting its efficacy in improving skeletal health, specifically bone strength or joint health, is limited and mixed. Some research has explored the use of cartilage-derived supplements for osteoarthritis and joint pain, but clinical trials have generally shown inconsistent or minimal benefits compared to placebo. The structural proteins and compounds found in cartilage—such as collagen and glycosaminoglycans—are believed to contribute to joint health, but these effects are better supported for isolated compounds (like glucosamine or chondroitin) rather than whole cartilage supplements. Therefore, while cartilage is scientifically recognized as a crucial component of the skeletal system's function, scientific validation for supplementing with cartilage to support skeletal health is weak, warranting a modest evidence rating.

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