# Boldo (Peumus boldus) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/boldo **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 6 / 10 **Category:** Amazonian **Also Known As:** Peumus boldus, Chilean boldo, Boldea fragrans, Boldu, Boldina, Citrón del monte, Limoncillo ## Overview Boldo (Peumus boldus) is a Chilean shrub containing boldine alkaloids that support [liver detox](/ingredients/condition/detox)ification and bile production. The herb's alkaloid compounds work primarily through hepatocyte protection and cholagogue mechanisms. ## Health Benefits • [Hepatoprotective](/ingredients/condition/detox) support - classified as a liver-protective herb in traditional medicine (evidence quality: traditional use only) • [Digestive health](/ingredients/condition/gut-health) support - traditionally used as a digestive herb (evidence quality: traditional use only) • Alkaloid content may provide therapeutic activity - contains boldine as primary bioactive compound (evidence quality: preliminary chemical analysis only) • Polyphenolic [antioxidant](/ingredients/condition/antioxidant) potential - contains total phenolic compounds (evidence quality: preliminary chemical analysis only) • Note: No clinical trials were provided in the research dossier to substantiate specific health benefits ## Mechanism of Action Boldine, the primary alkaloid, acts as a [hepatoprotective](/ingredients/condition/detox) agent by scavenging [free radical](/ingredients/condition/antioxidant)s and protecting hepatocytes from oxidative damage. The alkaloids stimulate bile production through cholagogue activity, enhancing gallbladder contraction and bile flow. Additional mechanisms include mild diuretic effects and potential [antimicrobial](/ingredients/condition/immune-support) activity against certain pathogens. ## Clinical Summary Most evidence for boldo comes from traditional use and animal studies rather than human clinical trials. In vitro studies demonstrate boldine's [antioxidant](/ingredients/condition/antioxidant) capacity and [hepatoprotective](/ingredients/condition/detox) effects in liver cell cultures. Animal research shows bile flow enhancement and digestive benefits, but human studies are limited to small observational trials. The evidence quality remains at the traditional use level with minimal controlled clinical data. ## Nutritional Profile Boldo (Peumus boldus) is a medicinal herb consumed primarily as a tea/infusion rather than a food source, so macronutrient content is nutritionally negligible in typical use. Key bioactive compounds are well-characterized: Alkaloids (0.25–0.5% of dry leaf weight) dominated by boldine (primary alkaloid, approximately 0.1–0.25% dry weight), alongside isoboldine, norisocorydine, laurotetanine, and roughly 17 other alkaloids in minor concentrations. Volatile essential oils constitute 1.5–3% of dry leaf weight, with ascaridole (a terpene peroxide) comprising 15–30% of the essential oil fraction — notably toxic in concentrated forms — along with p-cymene (up to 30% of oil), 1,8-cineole (eucalyptol, 15–20% of oil), linalool, and terpinen-4-ol. Flavonoids are present including isorhamnetin and rhamnetin glycosides at approximately 0.1–0.3% dry weight. Tannins (condensed) are present at roughly 0.5–1% dry weight contributing astringent properties. Resin content ranges from 2–5% dry weight. Fiber content of the whole leaf is present but not consumed directly. Mineral content is not well-quantified in literature but trace amounts of calcium, potassium, and magnesium are expected as in most Myrceugenia-family leaves. Bioavailability note: boldine has demonstrated reasonable oral bioavailability in animal studies with [antioxidant](/ingredients/condition/antioxidant) and [hepatoprotective](/ingredients/condition/detox) activity at the cellular level; ascaridole bioavailability raises safety concerns and is partially responsible for contraindications in pregnancy and prolonged use. ## Dosage & Preparation No clinically studied dosage ranges are available in the provided research. The studies focus on extraction yields (boldine: 2.3615 mg/g plant material using optimized NADES extraction) rather than therapeutic dosing protocols. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Boldo contains ascaridole, which can be toxic in large doses and may cause liver damage paradoxically. The herb should be avoided during pregnancy and breastfeeding due to potential uterine stimulation. Boldo may interact with anticoagulant medications due to its coumarin content. Extended use beyond 4 weeks is not recommended, and individuals with bile duct obstruction should avoid boldo. ## Scientific Research The provided research dossier contains no human clinical trials, randomized controlled trials, or meta-analyses. The available studies focus exclusively on extraction methodology and chemical profiling rather than clinical efficacy, making evidence-based health claims impossible to substantiate from this research. ## Historical & Cultural Context While the research identifies boldo as traditionally classified as a [hepatoprotective](/ingredients/condition/detox) and digestive herb, specific historical context, duration of traditional use, or detailed traditional applications are not provided in the available sources. ## Synergistic Combinations Milk thistle, artichoke leaf, dandelion root, turmeric ## Frequently Asked Questions ### What is the recommended dosage of boldo? Traditional dosing suggests 2-4 grams of dried leaves daily as tea or 2-4 ml of liquid extract three times daily. Treatment duration should not exceed 4 weeks without medical supervision due to potential toxicity from ascaridole content. ### Can boldo help with gallbladder problems? Boldo's boldine alkaloids stimulate bile production and gallbladder contraction, potentially helping with sluggish bile flow. However, it should never be used if gallstones or bile duct obstruction are present, as increased bile flow could worsen these conditions. ### Is boldo safe to take with liver medications? Boldo may interact with liver medications and anticoagulants due to its coumarin content and hepatic effects. Always consult a healthcare provider before combining boldo with prescription medications, especially those metabolized by the liver. ### How does boldo compare to milk thistle for liver health? While both support liver health, milk thistle has stronger clinical evidence with silymarin compounds that specifically regenerate liver cells. Boldo's boldine alkaloids focus more on bile production and antioxidant protection, with less robust human research supporting its use. ### What are the side effects of taking boldo? Common side effects include stomach upset, nausea, and potential liver toxicity from ascaridole if used long-term or in high doses. Some people may experience allergic reactions, and the herb's diuretic effects can cause increased urination and electrolyte changes. ### Is boldo safe during pregnancy and breastfeeding? Boldo is not recommended during pregnancy or breastfeeding due to insufficient safety data and its traditional use as a uterine stimulant in some cultures. The alkaloid content, particularly boldine, has not been adequately studied in pregnant or nursing populations. Consult a healthcare provider before using boldo if you are pregnant, planning pregnancy, or breastfeeding. ### What is boldine and why is it important in boldo supplements? Boldine is the primary alkaloid compound in boldo (Peumus boldus) and is believed to be responsible for much of the herb's traditional hepatoprotective and digestive effects. Research on boldine is still preliminary, but it has shown antioxidant properties in laboratory studies. However, clinical evidence demonstrating boldine's effectiveness in humans remains limited, so boldo's therapeutic benefits are primarily supported by traditional use rather than robust scientific data. ### Who should avoid boldo supplements? Boldo should be avoided by individuals with bile duct obstruction, severe liver disease, kidney disease, or those taking medications metabolized by the liver, as boldo may affect hepatic enzyme activity. Pregnant and breastfeeding women, children, and people with allergies to Lauraceae family plants should not use boldo. Anyone with existing health conditions should consult a healthcare provider before starting boldo supplementation. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*