Can You Take Quercetin and Vitamin C Together?

Dose or timing may matter

The short answer

While quercetin and vitamin C are often combined, high-dose quercetin inhibits vitamin C transporter SVCT1, potentially reducing vitamin C absorption. Paradoxically, vitamin C regenerates oxidized quercetin, creating a complex interdependence.

How to arrange timing

Use moderate doses of both; excessive quercetin may paradoxically reduce vitamin C absorption.

Reference

Reference noted for this combination: Corpe CP et al. Intestinal dehydroascorbic acid (DHA) transport mediated by the facilitative sugar transporters. J Biol Chem. 2013;288(13):9092-9101

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.