Association between Dietary Magnesium Intake and Radiographic Knee Osteoarthritis

Zeng C, Li H, Wei J, Yang T, Deng ZH, Yang Y, Zhang Y, Yang TB, Lei GH · PLoS One

Replicates the inverse association between dietary magnesium and radiographic knee osteoarthritis in a different population and diet, which is the main reason the magnesium signal is taken seriously at all.

Population

A Chinese population-based sample with knee radiographs scored by the OARSI atlas

Intervention

Higher dietary magnesium intake

Comparator

Lower intake

Limitations

Cross-sectional, self-reported intake, and the same confounding with overall dietary quality. Prevalent rather than incident disease.