Does Grapefruit Affect Pterostilbene?

May affect absorption or how you feel

The short answer

Pterostilbene is metabolized by CYP enzymes. Grapefruit may increase its blood levels, though pterostilbene already has better bioavailability than resveratrol.

How to arrange timing

Separate pterostilbene from grapefruit by 2 hours.

Reference

Reference noted for this food and supplement combination: Examine.com; Kapetanovic et al., Pharmacol Res 2011

Important context

The effect can also change with food amount, supplement 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.