Creatine vs Calcium
for bone health
Stronger evidence: Calcium
Stronger effect: Calcium
Safety: No notable interactions recorded for either.
For bone health, Calcium has the stronger evidence grade.
Creatine
grade C low certainty
Favorable effects on bone in post-menopausal females when creatine is combined with resistance training.
Calcium
grade B moderate certainty
modestly reduces fracture risk when combined with vitamin D, mainly in deficient/institutionalized populations
1000–1200 mg/day (with vitamin D), older adults
sources: PMID:33800439 · PMID:10000011