Marine omega-3 supplements did not show a fracture benefit
A randomized trial found no clear fracture benefit, despite a small improvement in whole-body bone density in a subgroup.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Supplementation did not significantly reduce total, nonvertebral or hip fractures in these generally healthy adults. A small change in whole-body bone density appeared in the measurement subgroup, while the other reported bone measures showed no clear benefit. That isolated density finding should not be treated as evidence that supplements prevented broken bones.
The abstract describes participants not selected for low bone density or previous fractures; effects in higher-risk groups remain uncertain. Bone imaging involved only a subgroup.
What researchers found
Total new fractures
Marine omega-3 versus placebo; median follow-up 5.3 years. The estimated fracture rate over time was 1.02 times the placebo rate. The confidence interval includes no difference, leaving lower or higher relative rates plausible; this is not an absolute risk change.
Fractures and bone measurements
Researchers tracked new fractures in the main trial cohort and measured bone density and structure in a smaller subgroup. Fractures and measurements of bone properties are different outcomes.
An isolated density finding
The small density increase was limited to the whole-body measure. There was no demonstrated improvement in spine or hip density, or in the reported bone-strength measures, compared with placebo.
The original publication
The effects of marine fatty acid omega-3 supplements on incident fractures and bone mineral density in generally healthy adults.
LeBoff MS, Chou SH, Ratnarajah DM et al.
J Bone Miner Res · 2026
- PubMed ID
- 41603552
- Record checked
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