Hesperetin

PhytochemicalFlavonoidBest with a meal

What is it

Hesperetin is a flavonoid (specifically a flavanone aglycone) found primarily in citrus fruits, particularly oranges. It is the aglycone (without sugar attached) of hesperidin, the glycoside form most abundant in citrus peel and pith.

Evidence for 4 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Endothelial function / vascular health

Good Evidence

Multiple trials of hesperidin (which converts to hesperetin) show improved flow-mediated dilation and reduced inflammatory markers in metabolic syndrome and overweight populations.

Chronic venous insufficiency

Good Evidence

Combined hesperidin-diosmin preparations (Daflon) reduce symptoms of venous insufficiency including swelling and discomfort.

Metabolic syndrome / lipids

Limited Evidence

Modest improvements in lipid profiles and blood pressure with hesperidin supplementation.

Exercise recovery

Mixed Evidence

Some emerging research on 2S-hesperidin for exercise performance; data is early.

How it works

Hesperetin is generated in the body from dietary hesperidin via gut bacterial enzymes that cleave the rutinose sugar. Once free, hesperetin is absorbed and exerts antioxidant, anti-inflammatory, and vascular effects. The conversion from hesperidin to hesperetin is variable between individuals depending on gut flora composition. In the vascular system, hesperetin and its derivatives improve endothelial function, reduce inflammatory markers, and may modestly improve blood pressure and lipid profiles. Several human trials show hesperidin (which yields hesperetin in vivo) reduces flow-mediated dilation impairment, suggesting endothelial-protective effects. Hesperetin also has weak estrogenic and anti-inflammatory effects, with research interest in conditions ranging from chronic venous insufficiency to metabolic syndrome. Most clinical research is on hesperidin (the natural dietary form) rather than hesperetin directly.

Dosage

Hesperetin is rarely supplemented directly. Hesperidin (which converts to hesperetin) is dosed at 500-1,000 mg/day in research. The 2S-form (2S-hesperidin) at 500 mg is increasingly studied. No RDA.

When and how to take it

Take with food containing some fat to enhance absorption. Time of day flexible. For vascular benefits, consistent daily use is more important than precise timing.

3 commercial forms

Compare the main delivery options and what they’re best suited for.

Hesperidin

Most common supplement form; effective for vascular endpoints.

Glycoside form; converted to hesperetin by gut bacteria.

2S-hesperidin

Newer form increasingly used in exercise research.

Specific stereoisomer with better bioavailability.

Diosmin + hesperidin (Daflon)

Prescription/OTC venoactive drug in Europe.

Standardized combination.

Safety

Hesperetin and hesperidin appear safe at typical supplement doses. Mild GI upset is the most common side effect. Long-term safety data is limited but dietary exposure has been lifelong without identified concerns.

Who should be cautious

Avoid in pregnancy and breastfeeding due to insufficient data. Caution with bleeding disorders or anticoagulant medications. Consult physician if on medications metabolized by CYP3A4.

Interactions

Hesperetin may inhibit certain CYP enzymes (CYP3A4) and increase blood levels of co-administered drugs metabolized by this pathway. May modestly affect platelet function and theoretically interact with anticoagulants.

Food sources

Orange (whole)

Amount
1 medium
%DV
—

Orange juice

Amount
1 cup (240ml)
%DV
—

Lemons / limes

Amount
Per fruit
%DV
—

Frequently asked questions

What's the difference between hesperidin and hesperetin?⌄

Hesperidin is the natural form in citrus, containing a sugar molecule. Gut bacteria cleave the sugar, releasing hesperetin (the active form). Most supplements use hesperidin.

Should I take hesperetin for circulation?⌄

If you have venous insufficiency, hesperidin-diosmin combinations (like Daflon) have the strongest evidence. For general vascular health, hesperidin 500-1,000 mg daily has modest support.

Is hesperetin in oranges enough?⌄

Dietary hesperidin from regular citrus consumption (1+ fruits/day) provides meaningful amounts. Supplementation provides higher doses for specific therapeutic effects.

References

Hesperetin on Wikidata — Wikidata link

Hesperetin (ChEBI:28230) — ChEBI link

Hesperetin (PubChem CID 72281) — PubChem link

Hesperetin on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Hesperetin (PubMed search) — PubMed link

Track Hesperetin with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.