A new review published in Biomedicines is adding to the growing body of research suggesting that cannabidiol (CBD) could play a meaningful role in bone health. Conducted by researchers from Universiti Kebangsaan Malaysia, the scoping review examined 24 original studies exploring how CBD affects bone-related outcomes across a range of experimental models.
The researchers conducted a systematic search of major scientific databases and analyzed studies regardless of design, focusing on CBD’s effects on bone formation, mineralization, strength, and underlying biological mechanisms. Of the 24 studies reviewed, 11 found clear beneficial effects from CBD, 11 reported mixed findings, and two found no apparent benefit.
Across the studies showing positive outcomes, CBD was consistently linked to improved bone formation, enhanced mineralization, stronger fracture callus development, and increased bone strength. These effects were largely attributed to CBD’s ability to influence the balance between osteoblasts, the cells responsible for building bone, and osteoclasts, the cells responsible for breaking bone down.
The review found that CBD appears to suppress bone resorption by reducing the formation and activity of osteoclasts while promoting osteoblast proliferation and matrix deposition. Several key molecular pathways were identified as part of this process, including activation of cannabinoid receptor 2 and modulation of the receptor activator of nuclear factor-κB ligand/osteoprotegerin system, a critical regulator of bone turnover.
Researchers also highlighted CBD’s influence on additional signaling systems tied to bone metabolism, including bone morphogenetic protein, Wnt, mitogen-activated protein kinase, nuclear factor-κB, and peroxisome proliferator-activated receptor pathways. Its anti-inflammatory and antioxidant properties were noted as further contributors to creating a bone microenvironment that favors growth and repair.
Despite these promising findings, the authors emphasized that the evidence base remains largely preclinical. While the consistency of mechanistic findings across animal and cellular studies is encouraging, the review makes clear that well-designed human clinical trials are still needed to determine whether these benefits translate to people, what dosing might be effective, and whether long-term use is safe.
The review concludes that CBD shows potential as a bone-protective compound acting through multiple complementary biological mechanisms, but that clinical research will be necessary before it can be considered a validated therapeutic option for bone-related conditions.
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