Citrus junos

BotanicalBest with a meal

What is it

Citrus junos, commonly called yuzu, is a citrus fruit native to East Asia. The fruit and peel are widely used in Japanese, Korean, and Chinese cuisine, and extracts appear in some functional-food and beverage supplements.

How it works

Yuzu fruit and peel are rich in vitamin C, flavonoids (especially hesperidin, naringin, and narirutin), and aromatic essential oils. The flavonoids contribute antioxidant activity and may modulate inflammatory pathways. Small Japanese studies have explored yuzu peel extracts for mood and circulation, often citing the aromatherapy and flavonoid components. Robust controlled human trials of supplemental yuzu remain limited.

Dosage

There is no established daily intake recommendation. Supplement label doses typically range from 100 to 500 mg of standardized yuzu peel extract.

When and how to take it

Yuzu products are typically consumed with meals or as a beverage. No critical time-of-day requirement.

2 commercial forms

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

Yuzu peel extract

Often used in functional beverages and aromatherapy-related products.

Flavonoids absorbed via small intestine; essential oils contribute aromatic effects.

Yuzu fruit powder

Used in functional foods and seasonings.

Provides vitamin C and flavonoids.

Safety

Yuzu is widely eaten and generally well tolerated. Concentrated peel extracts contain furanocoumarin compounds that, like grapefruit, can theoretically affect drug metabolism, though the magnitude is generally smaller than with grapefruit.

Who should be cautious

People taking CYP3A4-sensitive medications (some statins, calcium channel blockers, immunosuppressants) should ask a pharmacist before using concentrated yuzu peel supplements.

Interactions

Potential interaction with medications metabolized by CYP3A4 due to furanocoumarins in the peel. Effect is likely smaller than with grapefruit but caution is warranted.

Food sources

Yuzu juice

Amount
1 tbsp
%DV
—

Yuzu zest

Amount
1 tsp
%DV
—

Frequently asked questions

What does yuzu do?⌄

Yuzu is a flavorful citrus fruit rich in vitamin C and flavonoids. Supplements aim to provide concentrated extracts for antioxidant support and aromatherapy.

Does yuzu interact with drugs like grapefruit does?⌄

Yuzu peel contains furanocoumarins, which can affect CYP3A4 drug metabolism. Effects are likely milder than grapefruit but check with a pharmacist if you take sensitive medications.

References

Citrus junos on Wikidata — Wikidata link

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

Research on Citrus junos (PubMed search) — PubMed link

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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.