# Yuzu **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/yuzu **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-18 **Evidence Score:** 4 / 10 **Category:** Other **Also Known As:** Citrus junos, Japanese citron, Yuja, Ichandrin, Hwanggeumhyang, Korean citron, Citrus × junos ## Overview Yuzu is a Japanese citrus fruit exceptionally high in vitamin C and flavonoids like hesperidin and naringin. These compounds support immune function through enhanced [white blood cell](/ingredients/condition/immune-support) activity and provide [anti-inflammatory](/ingredients/condition/inflammation) effects by neutralizing [free radical](/ingredients/condition/antioxidant)s. ## Health Benefits - Yuzu is rich in vitamin C, enhancing immune function by stimulating [white blood cell](/ingredients/condition/immune-support) production. This helps the body fend off infections more effectively. - It contains antioxidants like flavonoids, which may reduce [inflammation](/ingredients/condition/inflammation) by neutralizing [free radical](/ingredients/condition/antioxidant)s. This can lower the risk of chronic diseases. - Yuzu's limonene content supports skin health by promoting [collagen production](/ingredients/condition/skin-health). This can lead to a more youthful appearance. - The fruit's potassium levels help regulate blood pressure, supporting [cardiovascular health](/ingredients/condition/heart-health). This reduces the risk of heart disease. - Yuzu's pectin fiber aids in [digestion](/ingredients/condition/gut-health) by promoting healthy gut bacteria. This can alleviate symptoms of constipation. - Its essential oils have been shown to reduce stress and anxiety levels by modulating [neurotransmitter activity](/ingredients/condition/cognitive). This can improve overall mental well-being. - Studies suggest Yuzu may enhance cognitive function by improving blood flow to the brain. This can boost memory and concentration. ## Mechanism of Action Yuzu's high vitamin C content (up to 150mg per 100g) enhances [immune function](/ingredients/condition/immune-support) by stimulating lymphocyte proliferation and neutrophil activity. The flavonoids hesperidin and naringin inhibit [pro-inflammatory cytokine](/ingredients/condition/inflammation)s like IL-6 and TNF-α while activating [antioxidant](/ingredients/condition/antioxidant) enzymes including superoxide dismutase and catalase. ## Clinical Summary Limited clinical research exists specifically on yuzu supplementation. Most evidence comes from in vitro studies on yuzu flavonoids showing [anti-inflammatory](/ingredients/condition/inflammation) activity at 50-100mg doses. Small human studies on citrus flavonoids suggest potential [cardiovascular](/ingredients/condition/heart-health) benefits, but yuzu-specific clinical trials with adequate sample sizes are needed. Current evidence is preliminary and largely based on extrapolation from other citrus fruits. ## Nutritional Profile - High in vitamin C and [antioxidant](/ingredients/condition/antioxidant)s. - Contains potassium, calcium, and magnesium. - Low in calories and fat. ## Dosage & Preparation Yuzu juice or zest can be used in cooking or as a supplement. Typical dosage is 1-2 teaspoons of juice daily. Consult a healthcare provider before use. ## Safety & Drug Interactions Yuzu is generally safe when consumed as food, with no known serious adverse effects reported. High doses of citrus flavonoids may interact with medications metabolized by CYP3A4 enzymes, potentially affecting drug absorption. Individuals with citrus allergies should avoid yuzu products. Safety during pregnancy and breastfeeding has not been established for supplemental doses. ## Scientific Research Studies indicate Yuzu's high antioxidant content may reduce [oxidative stress](/ingredients/condition/antioxidant) and improve [skin health](/ingredients/condition/skin-health). Research is ongoing to confirm its mood-enhancing properties. ## Historical & Cultural Context Yuzu has been used in traditional Japanese and Korean cuisine for centuries, often incorporated into sauces and dressings. It is also used in hot baths as a winter solstice tradition in Japan. ## Synergistic Combinations Lemon, Ginger, Honey, Green Tea ## Frequently Asked Questions ### How much vitamin C is in yuzu compared to oranges? Yuzu contains approximately 150mg of vitamin C per 100g, which is nearly three times higher than oranges (53mg per 100g). This makes yuzu one of the richest natural sources of vitamin C among citrus fruits. ### What are the main active compounds in yuzu? Yuzu's primary bioactive compounds include vitamin C, flavonoids like hesperidin and naringin, and limonoids. The peel contains high concentrations of limonene and other terpenes that contribute to its therapeutic properties. ### Can yuzu help reduce inflammation? Yuzu's flavonoids, particularly hesperidin and naringin, have shown anti-inflammatory effects in laboratory studies by inhibiting inflammatory markers like IL-6 and TNF-α. However, clinical studies on yuzu's anti-inflammatory effects in humans are limited. ### What is the recommended dosage for yuzu supplements? No standardized dosage exists for yuzu supplements due to limited clinical research. Most citrus flavonoid studies use 50-500mg daily doses, but specific yuzu supplementation guidelines have not been established through clinical trials. ### Are there any side effects of taking yuzu? Yuzu is well-tolerated when consumed as food with no reported serious side effects. Supplemental doses may cause mild digestive upset in sensitive individuals, and those with citrus allergies should avoid yuzu products entirely. ### What foods contain natural yuzu and how much would I need to eat to match a supplement dose? Yuzu is primarily found in East Asian cuisines, particularly in Japanese and Korean cooking, where it's used in juices, marmalades, and dressings. A single yuzu fruit contains approximately 40-50 mg of vitamin C, so consuming fresh yuzu would require multiple fruits daily to match typical supplement doses of 500-1000 mg. Yuzu juice concentrate is a more practical dietary source, though supplementation provides more standardized and concentrated doses of the fruit's beneficial compounds. ### Does yuzu interact with blood thinners or anticoagulant medications? Yuzu's high vitamin C content may have mild anticoagulant properties, so individuals taking warfarin, aspirin, or other blood thinners should consult their healthcare provider before supplementing. While dietary amounts of yuzu are generally safe alongside these medications, concentrated supplements could potentially affect blood clotting time. Medical supervision ensures there are no adverse interactions with your current treatment regimen. ### Which groups benefit most from yuzu supplementation—athletes, older adults, or those with specific health conditions? Individuals seeking immune support, those with high oxidative stress, and people interested in skin health benefits may benefit most from yuzu supplementation due to its vitamin C and limonene content. Athletes may appreciate its antioxidant properties for post-exercise recovery and inflammation reduction. Older adults concerned with age-related collagen loss and immune function decline are also good candidates, though individual needs vary and professional guidance is recommended. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*