Hermetica Superfood Encyclopedia
The Short Answer
Ruta graveolens, commonly known as rue, is a Mediterranean herb containing bioactive compounds including rutin and alkaloids that may support cellular health. Research indicates potential neuroprotective effects through MAO-B enzyme inhibition and selective activity against glioblastoma cells.
CategoryHerbs (Global Traditional)
GroupEuropean
Evidence LevelModerate
Primary Keywordrue herb benefits
Synergy Pairings3
Ruta graveolens (Rue) — botanical close-up
Health Benefits
Origin & History
Natural habitat
Ruta graveolens (common rue) is a perennial herbaceous plant native to the Mediterranean region, belonging to the Rutaceae family, and widely cultivated globally for medicinal use. The plant's aerial parts, particularly leaves and stems, are harvested and processed into extracts using methanol, water, or other solvents to capture bioactive compounds including flavonoids, alkaloids, and coumarins.
“In traditional Chinese medicine, Ruta graveolens treats fever from cold, wind-fire toothache, headache, bruises, and sprains. The herb has been used globally in folk medicine for centuries against various ailments, including traditional anti-tumor and neuroprotective applications.”Traditional Medicine
Scientific Research
Clinical evidence is extremely limited, with only one open-label pilot study (n=31) testing homeopathic Ruta graveolens 9c in advanced cancer patients, showing improved quality of life scores at weeks 8 and 16 (PMID: 25439039). No randomized controlled trials or meta-analyses exist for crude extracts, with remaining evidence derived from preclinical cell culture and animal studies.
Preparation & Dosage
Traditional preparation
The only clinically studied form was homeopathic Ruta graveolens 9c at 2 mL daily (two 1-mL ampoules) for at least 8 weeks. No clinical dosages exist for crude extracts, powders, or standardized forms. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Ruta graveolens is a bitter aromatic herb with limited consumption as a food due to toxicity concerns, but its phytochemical profile is well-characterized. Macronutrients per 100g fresh herb: protein ~3.5g, carbohydrates ~7g, fiber ~2.5g, fat ~0.6g. Key bioactive compounds include: Alkaloids — arborinine, skimmianine, kokusaginine, and graveoline at trace concentrations (0.01–0.1% dry weight); Flavonoids — rutin (quercetin-3-rutinoside) is the dominant compound at 1.5–2.5% dry weight, one of the highest natural concentrations of rutin among herbs, alongside quercetin (~0.3% dry weight) and kaempferol glycosides; Coumarins and furanocoumarins — bergapten (5-methoxypsoralen), xanthotoxin (8-methoxypsoralen), psoralen, and rutamarin at combined concentrations of 0.2–0.5% dry weight, responsible for photosensitizing effects; Essential oil constituents — 2-undecanone (dominant ketone, ~30–50% of volatile fraction), 2-nonanone, 2-decanone; Acridone alkaloids contributing to MAO-B inhibitory activity; Limonoids including limonin. Micronutrients: Vitamin C (~60–80mg/100g fresh), Vitamin A precursors (beta-carotene), calcium (~100mg/100g), iron (~1.5mg/100g). Bioavailability notes: Rutin has moderate oral bioavailability (~20–30%) enhanced by intestinal hydrolysis to quercetin; furanocoumarins are well-absorbed but activate cytochrome P450 enzymes (CYP3A4 inhibition noted), affecting drug metabolism. Safe culinary use is limited to very small amounts (1–2 fresh leaves) as larger doses are toxic and abortifacient.
How It Works
Mechanism of Action
Ruta graveolens contains rutin, quercetin, and various alkaloids that contribute to its biological activity. The herb's water extracts demonstrate selective cytotoxicity against glioblastoma cells while sparing healthy neurons, and inhibit monoamine oxidase-B (MAO-B) enzyme activity. These mechanisms may contribute to neuroprotective effects and potential therapeutic applications in neurodegenerative conditions.
Clinical Evidence
Clinical research on Ruta graveolens remains limited, with most evidence coming from in vitro studies. One small pilot study (n=31) investigated homeopathic Ruta graveolens 9c in advanced cancer patients, showing improved quality of life measures. Laboratory studies demonstrate selective cytotoxicity against glioblastoma cells and MAO-B inhibition, but human clinical trials are needed to confirm therapeutic efficacy. The current evidence is preliminary and requires further validation through larger, controlled studies.
Safety & Interactions
Ruta graveolens can cause photosensitivity reactions and skin irritation upon sun exposure due to its furanocoumarins content. The herb is contraindicated during pregnancy as it may stimulate uterine contractions and cause abortion. Large doses can be toxic, causing gastric irritation, confusion, and convulsions. Potential interactions with anticoagulant medications and photosensitizing drugs should be considered before use.
Synergy Stack
Hermetica Formulation Heuristic
Frequently Asked Questions
What is rue herb used for medicinally?
Rue herb is traditionally used for digestive issues and menstrual disorders, though modern research focuses on its potential neuroprotective effects and selective activity against brain cancer cells. Clinical evidence remains limited to small preliminary studies.
Can rue herb help with cancer treatment?
One small pilot study showed homeopathic rue (Ruta graveolens 9c) improved quality of life in 31 advanced cancer patients. Laboratory studies show selective toxicity against glioblastoma cells, but more clinical research is needed to establish therapeutic efficacy.
What are the side effects of rue herb?
Rue herb can cause severe photosensitivity reactions, leading to burns and blistering when exposed to sunlight. Other side effects include skin irritation, gastric upset, and in large doses, confusion and convulsions.
Is rue herb safe during pregnancy?
Rue herb is not safe during pregnancy and should be avoided completely. The herb contains compounds that can stimulate uterine contractions and potentially cause miscarriage or abortion.
How does rue herb work in the brain?
Rue herb's water extracts inhibit MAO-B enzyme activity, which breaks down neurotransmitters like dopamine. The herb also shows selective toxicity against glioblastoma brain cancer cells while sparing healthy neurons, though the exact mechanisms require further study.
What is the difference between rue extract, dried herb, and homeopathic preparations of Ruta graveolens?
Rue is available as dried leaf/herb (traditional tea or capsule form), concentrated water or ethanolic extracts, and homeopathic potencies (like 9c used in research). Water extracts and ethanolic extracts contain higher concentrations of active alkaloids and coumarins, while homeopathic preparations are extremely diluted and work through different mechanisms. Dried herb preparations fall between these in potency and are commonly used in traditional herbal medicine, though bioavailability varies significantly by preparation method.
Does rue herb interact with common medications like blood thinners or seizure medications?
Rue contains coumarins with potential anticoagulant activity and may interact with blood-thinning medications like warfarin, requiring medical supervision if used concurrently. Additionally, rue's historical use for seizure management and MAO-B inhibition suggests potential interactions with seizure medications and antidepressants (especially MAOIs), though clinical interaction data in humans is limited. Medical consultation is strongly recommended before combining rue with any prescription medications.
What does the current clinical evidence show about rue's effectiveness, and how strong is it compared to other herbal neuroprotectants?
Clinical evidence for rue in humans is very limited—the strongest study is a pilot trial (n=31) showing quality-of-life improvements in advanced cancer patients using homeopathic Ruta graveolens, which represents preliminary-level evidence. Animal and in-vitro studies show neuroprotective potential against glioblastoma cells and MAO-B inhibition, but these findings have not been replicated in human trials. Compared to other herbal neuroprotectants like ginkgo or curcumin, rue has substantially less robust clinical evidence, making it a research ingredient rather than an evidence-backed therapeutic option.
Explore the Full Encyclopedia
7,400+ ingredients researched, verified, and formulated for optimal synergy.
Browse IngredientsThese statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.
hermetica-encyclopedia-canary-zzqv9k4w ruta-graveolens curated by Hermetica Superfoods at ingredients.hermeticasuperfoods.com and licensed CC BY-NC-SA 4.0 (non-commercial share-alike, attribution required)
