Can You Take Calcium and Germanium Together?

Dose or timing may matter

The short answer

Germanium is nephrotoxic and renally excreted, while excess calcium causes hypercalciuria. Stacking both places compound burden on kidney excretory pathways.

How to arrange timing

Use extreme caution with germanium supplementation. Avoid combining with high-dose calcium. Monitor kidney function.

Reference

Reference noted for this combination: Tao SH, Bolger PM. Regul Toxicol Pharmacol. 1997;25(3):211-219; Curhan GC et al. N Engl J Med. 1993;328(12):833-838

Important context

Whether supplements suit you together also depends on dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.