Can You Take Evening Primrose Oil and GLA Together?

Use extra care with this pair

The short answer

Evening Primrose Oil is a primary supplemental source of GLA. Adding standalone GLA on top of Evening Primrose Oil stacks the same fatty acid, which may amplify antiplatelet effects and increase bleeding risk.

How to arrange timing

Choose either Evening Primrose Oil or standalone GLA, not both. If you need higher GLA, switch to Borage Oil which has higher GLA concentration.

Reference

Reference noted for this combination: Fan YY, Chapkin RS, Journal of Nutrition, 1998; Dietary GLA and physiological effects

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.