Researchers studying 184 women who underwent mastectomy found that those with vitamin D deficiency were three times more likely to experience moderate to severe pain during the first 24 hours after surgery. The results, reported by ScienceDaily, add to a growing but still puzzling picture of how vitamin D may influence pain.
The study does not establish cause and effect. It is possible that low vitamin D is a marker for other health factors that affect recovery, or that the vitamin plays a direct role in pain sensitivity. The authors describe the link as strange, and more research would be needed to explain the mechanism.
For now, the practical implication is modest: vitamin D status may deserve attention before and after breast cancer surgery, but the study alone does not justify changing clinical practice. Larger and more controlled studies would be needed to confirm the relationship and to test whether correcting a deficiency improves pain outcomes.