flavonoid
3 interactions related to flavonoid
vitamin c + quercetin
Quercetin is a plant flavonoid with antioxidant and anti-inflammatory activity. As quercetin scavenges free radicals it becomes oxidized, and vitamin C can donate electrons to recycle it back to its active form, theoretically prolonging its effect and limiting prooxidant byproducts. This pairing is popular for immune and allergy support, but the human evidence is limited and largely mechanistic.
fisetin + quercetin
Fisetin and quercetin are structurally related dietary flavonols with overlapping antioxidant and anti-inflammatory activity, both studied as candidate senolytics. They are often combined in longevity-oriented supplement stacks, but the robust human senolytic evidence is for dasatinib plus quercetin, not for the fisetin-plus-quercetin pairing, which rests largely on animal and mechanistic data. The combination is generally well tolerated; the main practical consideration is that both flavonoids can affect platelet function and drug metabolism, so anyone on prescription medication should check with a clinician.
quercetin + bromelain
Quercetin and bromelain are commonly co-formulated for inflammation and allergy support, and bromelain has its own anti-inflammatory action, but the popular claim that bromelain boosts quercetin absorption 2-3x is a vendor figure not backed by any human pharmacokinetic study.