# Licanin B (lignan) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/licanin-b **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 2 / 10 **Category:** Compound **Also Known As:** Licanin B, Lignan compound B, Phenylpropane dimer B, Plant lignan B, Dibenzylbutane lignan, Aryltetralin lignan ## Overview Licanin B is a naturally occurring lignan compound isolated from plant sources, structurally related to other arylnaphthalene and dibenzylbutyrolactone lignans. Its primary investigated activity centers on in vitro DNA topoisomerase inhibition, though no human clinical data currently supports therapeutic use. ## Health Benefits • No clinical health benefits documented - research dossier contains no human studies or clinical evidence for Licanin B • Related lignans show DNA topoisomerase inhibition in vitro only (no human evidence) • No [cardiovascular](/ingredients/condition/heart-health), metabolic, or other health outcomes reported in available research • Lack of published studies prevents evidence-based health claims • Further research needed to establish any potential therapeutic effects ## Mechanism of Action Licanin B, like structurally related lignans, is hypothesized to inhibit DNA topoisomerase enzymes (types I and II), which are critical for DNA replication and transcription by catalyzing strand breakage and re-ligation. This inhibition can induce DNA strand breaks and trigger apoptotic cascades in cell-based models. These proposed mechanisms have been observed only in vitro and have not been validated through pharmacokinetic or receptor-binding studies in humans. ## Clinical Summary No human clinical trials, randomized controlled studies, or observational cohort studies have been conducted on Licanin B as of the available research dossier. All existing data is restricted to in vitro cell-culture experiments examining topoisomerase inhibition in isolated cell lines. No quantified therapeutic outcomes, effective dosage ranges, or bioavailability data in humans have been reported. The overall evidence base is insufficient to draw any conclusions about clinical efficacy or safety in humans. ## Nutritional Profile {"macronutrients": {"protein": "Not applicable", "fiber": "Not applicable", "fat": "Not applicable", "carbohydrates": "Not applicable"}, "micronutrients": {"vitamins": "Not applicable", "minerals": "Not applicable"}, "bioactive_compounds": {"Licanin B": "Concentration not established", "Bioavailability": "Not established"}} ## Dosage & Preparation No clinically studied dosage ranges, forms, or standardization details exist for Licanin B in the available sources. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions No formal human safety studies, toxicology reports, or adverse event data exist for Licanin B in the published literature. Drug interaction potential is unknown, particularly with anticoagulants, chemotherapeutic agents, or other topoisomerase-active compounds, where additive or antagonistic effects are theoretically possible. Licanin B is not recommended during pregnancy or lactation due to a complete absence of safety data. Individuals should consult a healthcare provider before considering any product containing this compound. ## Scientific Research No human clinical trials, RCTs, or meta-analyses are reported for Licanin B in the available research. The research dossier explicitly states no PubMed PMIDs for clinical outcomes exist, with only in vitro data on related compounds like nectandrin B showing topoisomerase inhibition. ## Historical & Cultural Context No historical or traditional medicinal uses are documented for Licanin B across any traditional medicine systems. The research dossier indicates no ethnobotanical or traditional use data is available. ## Synergistic Combinations No synergistic compounds identified due to lack of research ## Frequently Asked Questions ### What is Licanin B and where does it come from? Licanin B is a lignan — a class of polyphenolic compounds formed from two phenylpropanoid units — isolated from specific plant species. Like other lignans, it is found in plant cell walls, seeds, and woody tissues, though its precise primary botanical source and extraction yield data are not widely documented in the current literature. ### Does Licanin B have any proven health benefits? There are no documented clinical health benefits for Licanin B in humans. The only research available involves in vitro studies suggesting DNA topoisomerase inhibition at the cellular level, which does not constitute clinical evidence of benefit. No human trials of any phase have been published. ### How does Licanin B work in the body? Based strictly on in vitro data from related lignans, Licanin B is theorized to inhibit DNA topoisomerase I and II enzymes, disrupting DNA replication and potentially triggering apoptosis in rapidly dividing cells. However, its oral bioavailability, metabolite profile, and actual mechanism of action in living humans remain completely unstudied and unknown. ### Is Licanin B safe to take as a supplement? The safety profile of Licanin B is entirely undetermined, as no human toxicology, pharmacokinetic, or clinical safety studies have been conducted. Without established safe dosage thresholds, known drug interactions, or adverse event data, it cannot be considered safe for supplementation by current evidence standards. Use during pregnancy, breastfeeding, or alongside medications should be strictly avoided. ### How is Licanin B different from other lignans like secoisolariciresinol or enterolignans? Unlike secoisolariciresinol diglucoside (SDG) found in flaxseed, which is metabolized by gut bacteria into the enterolignans enterodiol and enterolactone with documented hormonal and antioxidant activity in human studies, Licanin B has no comparable human research or established metabolic pathway. Licanin B's structural classification and proposed topoisomerase-inhibiting activity distinguish it mechanistically from phytoestrogenic lignans that act on estrogen receptors (ERα and ERβ). ### What foods naturally contain Licanin B? Licanin B is a lignan found in plant-based foods, though specific dietary sources rich in this particular compound are not well-documented in published research. While other lignans are abundant in seeds, whole grains, and legumes, the distribution and concentration of Licanin B specifically in food sources remains understudied. Most information about Licanin B comes from isolated research rather than nutritional epidemiology, making it difficult to recommend dietary sources as a reliable way to obtain this compound. ### Is there clinical evidence that Licanin B supplementation is effective in humans? No clinical studies in humans have evaluated the effectiveness of Licanin B supplementation. Available research on Licanin B is limited to laboratory (in vitro) studies examining its biochemical properties, such as DNA topoisomerase inhibition, which have not been translated to human health outcomes. Without published clinical trials, evidence-based health claims about Licanin B cannot be made, and further research is needed to determine whether it provides any measurable benefit to human health. ### Who should avoid taking Licanin B supplements, or is it safe for all populations? Due to the lack of human safety studies, specific recommendations about which populations should avoid Licanin B cannot be definitively established. The ingredient has not been formally evaluated for safety in pregnant women, nursing mothers, children, or individuals with specific medical conditions. Anyone considering Licanin B supplementation should consult a healthcare provider, as the absence of safety data does not guarantee it is safe for vulnerable populations. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*