Can You Take Germanium and Phosphorus Together?

Dose or timing may matter

The short answer

Germanium may impair renal function, reducing the kidney's ability to excrete phosphorus. Phosphorus accumulation can further damage kidneys, creating a negative feedback loop.

How to arrange timing

Avoid this combination. If germanium is used, monitor both renal function and serum phosphorus levels.

Reference

Reference noted for this combination: Tao SH, Bolger PM. Regul Toxicol Pharmacol. 1997;25(3):211-219; Calvo MS, Uribarri J. Adv Nutr. 2013;4(6):602-611

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.