CBD may protect bone by boosting bone-building cells and suppressing bone-breakdown cells, but human trials are still missing

Eleven of 24 studies demonstrated beneficial effects of CBD on bone formation, mineralization, callus quality, or strength. Another eleven showed mixed results, and two showed no benefit. CBD appears to suppress bone resorption while promoting osteoblast proliferation.

Systematic search of PubMed, Scopus, and Web of Science in October 2025 for original studies examining CBD effects on bone health. Twenty-four primary studies were included regardless of study design. Data on CBD formulation, treatment parameters, and bone outcomes were extracted and analyzed descriptively.

Osteoporosis affects hundreds of millions worldwide and current treatments carry significant side effects. If CBD can genuinely enhance bone formation while reducing breakdown, it could offer a novel therapeutic approach, but the evidence is still entirely preclinical.

This review maps the preclinical landscape for CBD and bone health. The split results (roughly half positive, half mixed) suggest CBD's bone effects are real but highly context-dependent, likely varying by dose, formulation, and disease model.

All evidence is preclinical. No controlled human trials were included. The heterogeneity of study designs, CBD formulations, and bone models makes direct comparison difficult.