Can You Take Fish Oil (Omega-3) and Undecylenic Acid Together?

May affect absorption

The short answer

Undecylenic Acid is a medium-chain fatty acid primarily used as an antifungal. It competes with Fish Oil for intestinal lipid absorption pathways. Co-ingestion may reduce absorption of omega-3 fatty acids.

How to arrange timing

Separate Undecylenic Acid and Fish Oil by at least 1 hour to optimize absorption of both.

Reference

Reference noted for this combination: McLain N et al., Journal of Lipid Research, 2000; Undecylenic acid absorption and antifungal properties

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.