Can You Take BCAA and Ornithine HCl Together?

May affect absorption

The short answer

BCAAs and ornithine HCl are both amino acids that compete for intestinal absorption transporters. Taking them together may reduce the uptake efficiency of each.

How to arrange timing

Separate by 30–60 minutes for optimal absorption of both, or take ornithine before bed and BCAAs around training.

Reference

Reference noted for this combination: Cynober L. Ornithine alpha-ketoglutarate as a potent precursor of arginine and nitric oxide: a new job for an old friend. J Nutr. 2004;134(10 Suppl):2858S-2862S

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.