Hermetica Superfood Encyclopedia
The Short Answer
Erythrodiol (Olean-12-ene-3β,28-diol) is a pentacyclic triterpene alcohol found in olive oil, dandelion root, and various medicinal plants. It exerts biological effects primarily through modulation of inflammatory signaling pathways and induction of apoptosis in malignant cells.
CategoryNamed Bioactive Compounds
GroupCompound
Evidence LevelModerate
Primary Keyworderythrodiol benefits
Synergy Pairings3
Erythrodiol (Olean-12-ene-3β,28-diol) — botanical close-up
Health Benefits
Origin & History
Natural habitat
Erythrodiol (Olean-12-ene-3β,28-diol) is a pentacyclic triterpenic diol naturally occurring in olive oil, olive pomace, and olives (Olea europaea L.), as well as in plants like Elaeagnus unijuga roots. This triterpenoid compound of the oleanane class can be isolated from these plant materials or biotransformed for research purposes.
“No historical or traditional medicine uses were documented in the available research. The compound's significance appears to be entirely based on modern pharmacological investigations of its natural occurrence in olives and contemporary research into its biological activities.”Traditional Medicine
Scientific Research
Current evidence for erythrodiol is limited to preclinical studies with no human clinical trials, RCTs, or meta-analyses identified. Key research includes a mouse model of experimental autoimmune encephalomyelitis showing delayed disease onset and reduced severity at 50 mg/kg oral dosing, and in vitro studies demonstrating cytotoxic effects on HepG2 hepatocarcinoma cells.
Preparation & Dosage
Traditional preparation
No human clinical dosages have been established. In animal studies, 50 mg/kg oral administration was used in mouse models. In vitro studies used concentrations ranging from 0-140 μg/mL. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Erythrodiol (Olean-12-ene-3β,28-diol) is a pentacyclic triterpenoid alcohol, not a macronutrient or conventional micronutrient. It is a pure bioactive compound with molecular formula C30H50O2 and molecular weight of 442.72 g/mol. It contains no protein, carbohydrates, fiber, or minerals. As a lipophilic triterpene diol, it is derived from the oleanane-type triterpenoid skeleton. It occurs naturally in olive oil (Olea europaea) at concentrations ranging from approximately 1–30 mg/kg in virgin olive oils, with higher concentrations in the unsaponifiable fraction; it is also found in the waxy coatings of various fruits and plant surfaces. Bioavailability is limited due to its highly lipophilic nature (estimated log P > 6), requiring fat-containing matrices or lipid-based delivery systems for meaningful intestinal absorption. It is structurally related to oleanolic acid and uvaol, differing by the presence of a primary alcohol at C-28 rather than a carboxylic acid group. No established dietary reference intake exists. Concentrations in olive pomace can reach 50–200 mg/kg dry weight. Its bioactive effects are attributed to interactions with cellular membranes and signaling pathways rather than classical nutritional contributions.
How It Works
Mechanism of Action
Erythrodiol modulates the arachidonic acid cascade by inhibiting cyclooxygenase (COX) enzymes, thereby reducing pro-inflammatory prostaglandin synthesis. In cancer cell lines, it triggers mitochondria-mediated apoptosis by altering Bcl-2/Bax protein ratios and activating caspase-3 cascades. Additionally, preliminary evidence suggests it may interfere with NF-κB signaling, suppressing downstream cytokine production relevant to both autoimmune and oncological pathology.
Clinical Evidence
No human clinical trials have been conducted on isolated erythrodiol supplementation as of current literature. A mouse model of autoimmune neurological disease demonstrated delayed disease onset from approximately 13.5 days in controls to 33–34 days in treated animals, suggesting meaningful immunomodulatory effects in vivo. In vitro cytotoxicity studies using HepG2 human hepatocellular carcinoma cells confirmed dose-dependent cell death, though effective concentrations have not been validated in animal or human cancer models. Cardiovascular observations remain at the mechanistic hypothesis stage, with no controlled trial data available to confirm efficacy or optimal dosing.
Safety & Interactions
Erythrodiol has not undergone formal human safety or toxicology trials, and no established safe dosage range exists for human supplementation. Because it inhibits COX enzymes similarly to NSAIDs, concurrent use with anticoagulants such as warfarin or antiplatelet drugs like aspirin may theoretically increase bleeding risk. Pregnant and breastfeeding women should avoid erythrodiol supplements due to a complete absence of reproductive safety data. Individuals with hormone-sensitive conditions should exercise caution, as some triterpenes in its structural class have shown weak hormonal activity in preclinical models.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Olean-12-ene-3β,28-diol3β,28-Dihydroxyolean-12-eneOleanolic acid diolPentacyclic triterpenic diolOleanane-type triterpene diol28-Hydroxyerythrodiol
Frequently Asked Questions
What foods naturally contain erythrodiol?
Erythrodiol is found in olive oil (particularly in the unsaponifiable fraction), dandelion root (Taraxacum officinale), and several species of Euphorbia and Olea europaea. Virgin olive oil contains it alongside related triterpenes like uvaol, typically in concentrations of a few hundred milligrams per kilogram of oil. Processing and refining olive oil can significantly reduce its erythrodiol content.
Can erythrodiol help with multiple sclerosis or autoimmune neurological disease?
A preclinical mouse model of autoimmune neurological disease showed that erythrodiol delayed disease onset from 13.5 days in untreated animals to 33–34 days in treated animals, a statistically notable delay. This suggests immunomodulatory activity, possibly through suppression of inflammatory cytokines via NF-κB or COX pathway inhibition. However, no human trials exist, and these findings cannot currently be extrapolated to MS treatment in people.
Is erythrodiol effective against liver cancer?
In vitro studies using HepG2 human hepatocellular carcinoma cells have demonstrated that erythrodiol exhibits cytotoxic activity in a dose-dependent manner, likely through caspase-3-mediated apoptosis and disruption of Bcl-2/Bax balance. These findings are promising but represent only cell culture data, which frequently overestimates efficacy compared to whole-organism outcomes. No animal tumor models or human oncology trials have validated these results.
How does erythrodiol differ from uvaol and oleanolic acid?
Erythrodiol (Olean-12-ene-3β,28-diol) shares the oleane pentacyclic triterpene skeleton with oleanolic acid and uvaol but differs in its functional groups: it carries hydroxyl groups at both C-3 and C-28 positions, whereas oleanolic acid has a carboxylic acid at C-28. Uvaol is its ursane-skeleton isomer with a similar diol pattern. These structural differences produce distinct pharmacokinetic profiles and may account for subtle differences in potency across anti-inflammatory and anticancer assays.
What is the recommended dosage of erythrodiol supplements?
There is currently no established or clinically validated dosage for erythrodiol in human supplementation, as no human pharmacokinetic or dose-ranging trials have been published. All biological effects observed to date derive from in vitro cell studies or animal models, where doses are not directly translatable to human milligram-per-kilogram recommendations. Until clinical research defines a safe and effective dose, erythrodiol should not be taken as a standalone therapeutic supplement.
Is erythrodiol safe to take with blood pressure medications?
While preliminary in vitro research suggests erythrodiol may have vasorelaxant properties that could theoretically affect blood pressure, there are currently no published clinical studies examining interactions with antihypertensive medications. Anyone taking blood pressure medications should consult their healthcare provider before adding erythrodiol supplements, as the combination has not been adequately studied in humans. Current evidence is too limited to make definitive safety recommendations regarding this drug interaction.
What does the current clinical evidence show about erythrodiol's effectiveness in humans?
Most evidence for erythrodiol comes from laboratory studies (in vitro) and animal models (in vivo), with the most notable human data being preliminary findings in mouse models of autoimmune neurological disease showing delayed disease progression. No large-scale randomized controlled trials in human subjects have been published to date, meaning efficacy claims remain largely theoretical. The ingredient should be considered experimental, and claims about health benefits are not yet supported by clinical human evidence.
Who should avoid taking erythrodiol supplements?
Pregnant and nursing women should avoid erythrodiol due to the lack of safety data in these populations. Individuals with existing liver disease should exercise caution, as most research has focused on erythrodiol's effects on liver cancer cells, and the ingredient's metabolism has not been thoroughly characterized in compromised livers. People with bleeding disorders or those taking anticoagulant medications should consult a healthcare provider, as triterpenes like erythrodiol may have antiplatelet properties based on preliminary evidence.
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