# Lomatium (Lomatium dissectum) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/lomatium **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-29 **Evidence Score:** 2 / 10 **Category:** Native American **Also Known As:** fernleaf biscuitroot, desert parsley, chocolate tips, Indian consumption plant, Indian parsley, wild carrot, biscuitroot lomatium, fernleaf desert-parsley, giant lomatium ## Overview Lomatium dissectum is a flowering plant in the carrot family (Apiaceae) traditionally used by over 50 Native American tribes for respiratory and [immune support](/ingredients/condition/immune-support). Its primary bioactive compounds include furanocoumarins (notably suksdorfin and dihydrosamidin) and terpenoids, which are thought to exert antiviral and antimicrobial activity through disruption of microbial replication cycles. ## Health Benefits • Traditional use suggests benefits in medicinal applications, although no specific conditions are cited due to a lack of clinical trials. • Contains monoterpenes and sesquiterpenes which may support general health, but evidence is limited to phytochemical analysis. • Used by Native American traditional medicine systems, indicating a historical belief in its efficacy. • Essential oils may contribute to [antimicrobial](/ingredients/condition/immune-support) properties, though this is based on in vitro studies. • The presence of compounds like 1-octanol and octyl acetate suggests potential therapeutic properties, yet these remain unproven in human studies. ## Mechanism of Action Lomatium dissectum's furanocoumarins, particularly suksdorfin and dihydrosamidin, are believed to intercalate into viral DNA and inhibit replication enzymes such as reverse transcriptase, potentially limiting viral proliferation. The plant's monoterpenes and sesquiterpenes may modulate innate immune signaling by influencing NF-κB pathway activity, promoting [cytokine](/ingredients/condition/inflammation) release relevant to early immune response. Additionally, polysaccharide fractions may stimulate macrophage phagocytic activity, offering a secondary [immunomodulatory](/ingredients/condition/immune-support) mechanism distinct from the furanocoumarin pathway. ## Clinical Summary Clinical evidence for Lomatium dissectum remains extremely limited, with no published randomized controlled trials in peer-reviewed literature as of 2024. Available data consists primarily of ethnobotanical records, in vitro phytochemical studies, and isolated case reports from naturopathic practitioners. One small in vitro study identified [antiviral](/ingredients/condition/immune-support) activity of furanocoumarin isolates against influenza strains, but these findings have not been replicated in human trials with quantified outcomes. The overall evidence base is insufficient to make efficacy claims for any specific health condition, and the herb remains classified as a traditional botanical remedy. ## Nutritional Profile {"macronutrients": {"protein": "Not well-documented", "fiber": "Not well-documented"}, "micronutrients": {"vitamins": "Limited data available", "minerals": "Limited data available"}, "bioactive_compounds": {"monoterpenes": "Present, specific concentrations not well-documented", "sesquiterpenes": "Present, specific concentrations not well-documented"}, "bioavailability_notes": "Due to limited scientific research, specific bioavailability data for Lomatium dissectum is not available. Traditional use suggests potential health benefits, but clinical evidence is lacking."} ## Dosage & Preparation No clinically studied dosage ranges are available. Commercial tinctures typically use a 1:3 dry root to menstruum ratio, but these lack clinical validation. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions A well-documented adverse effect of Lomatium dissectum is a diffuse, measles-like skin rash (sometimes called 'Lomatium rash') reported by a subset of users, particularly at higher doses, which typically resolves upon discontinuation. Due to its furanocoumarin content, Lomatium may potentiate photosensitivity and should be used cautiously alongside other photosensitizing agents. Furanocoumarins are known inhibitors of CYP3A4 enzymes, raising a theoretical risk of interactions with medications metabolized by this pathway, including certain statins, immunosuppressants, and anticoagulants. Lomatium is not recommended during pregnancy or breastfeeding given the absence of safety data and the potential uterine-stimulating properties noted in ethnobotanical literature. ## Scientific Research No key human clinical trials or meta-analyses are available for Lomatium dissectum as research is primarily focused on phytochemical analysis and traditional uses. Specific PMIDs are not provided in the dossier. ## Historical & Cultural Context Lomatium species have been utilized in Native American traditional medicine for various medicinal purposes. This reflects an ethnobotanical heritage, particularly in the Intermountain West, with practices involving root washing, chopping, and drying for tincture preparation. ## Synergistic Combinations Echinacea, Goldenseal, Elderberry, Licorice root, Astragalus ## Frequently Asked Questions ### What is Lomatium dissectum used for traditionally? More than 50 Native American tribes, including the Washoe, Paiute, and Shoshone, historically used Lomatium dissectum root preparations to treat respiratory infections, influenza, and tuberculosis-like illnesses. Poultices were also applied topically for wounds and skin infections, while root decoctions were consumed to support recovery from febrile illness. ### What are the active compounds in Lomatium dissectum? The primary bioactive compounds in Lomatium dissectum are furanocoumarins, specifically suksdorfin, dihydrosamidin, and columbianadin, along with monoterpenes such as α-pinene and sesquiterpenes. The root also contains polysaccharides and volatile oils that contribute to its reported antimicrobial and immunomodulatory properties in phytochemical analyses. ### Can Lomatium dissectum cause a skin rash? Yes, a diffuse, non-itchy or mildly itchy rash resembling measles or a viral exanthem is a recognized adverse reaction associated with Lomatium use, sometimes referred to as 'Lomatium rash.' It is more commonly reported at higher doses and typically resolves within days to weeks after stopping the supplement. The exact mechanism is not fully understood but may relate to immune activation or furanocoumarin metabolism. ### Does Lomatium dissectum interact with any medications? Lomatium dissectum contains furanocoumarins that are known inhibitors of the cytochrome P450 3A4 (CYP3A4) enzyme system, which metabolizes a broad range of pharmaceuticals. This creates a theoretical risk of elevated plasma levels of drugs such as cyclosporine, atorvastatin, warfarin, and certain benzodiazepines when taken concurrently. Anyone on prescription medications should consult a healthcare provider before using Lomatium supplements. ### Is there a recommended dosage for Lomatium dissectum supplements? No standardized clinical dosage has been established for Lomatium dissectum due to the absence of human clinical trials. Herbalists and naturopathic practitioners commonly suggest tincture doses of 1–3 mL (1:5 ratio in 60% ethanol) two to three times daily, or encapsulated root powder at 500–1000 mg per day, though these figures are empirical rather than evidence-based. Starting with the lowest suggested dose is advisable to monitor for adverse skin reactions. ### Is Lomatium dissectum safe for children or elderly individuals? Safety data for Lomatium dissectum in children and elderly populations is limited due to lack of clinical trials. The potential for skin reactions and the presence of essential oils warrant caution in these groups, and pediatric or geriatric use should be discussed with a healthcare provider before supplementation. Traditional use does not provide sufficient evidence to confirm safety across all age groups. ### What form of Lomatium dissectum supplement is most effective—root extract, dried root, or tincture? Bioavailability varies by form, with tinctures and liquid extracts potentially offering faster absorption of volatile monoterpenes and sesquiterpenes compared to dried root powder. However, no comparative clinical studies have established which form delivers superior efficacy, making the choice dependent on individual tolerance and traditional preparation methods. The volatile nature of essential oils may be better preserved in concentrated extracts rather than dried preparations. ### How strong is the scientific evidence supporting Lomatium dissectum's health benefits? Clinical evidence for Lomatium dissectum is extremely limited, with most support coming from phytochemical analysis and traditional use in Native American medicine rather than peer-reviewed human trials. While the plant contains bioactive monoterpenes and sesquiterpenes, no rigorous clinical studies have definitively proven efficacy for specific health conditions. Consumers should understand that traditional use does not equal clinical validation, and more research is needed to substantiate health claims. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*