Can You Take Phosphorus and Whey Protein Together?

Dose or timing may matter

The short answer

Whey protein is naturally high in phosphorus and also increases urea nitrogen load. Additional phosphorus supplementation compounds the renal burden of processing both elevated phosphate and nitrogen waste.

How to arrange timing

Avoid supplementing phosphorus separately when consuming whey protein, which already provides significant phosphorus.

Reference

Reference noted for this combination: Calvo MS, Uribarri J. Adv Nutr. 2013;4(6):602-611; Martin WF et al. Nutr Metab. 2005;2:25

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.