# Cold-Pressed Hemp Seed Oil (Cannabis sativa) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/cold-pressed-hemp-seed-oil **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-30 **Evidence Score:** 2 / 10 **Category:** Seed Oils **Also Known As:** Cannabis sativa seed oil, Hemp seed oil, Cold-pressed cannabis seed oil, Mechanical-pressed hemp oil, Expeller-pressed hemp seed oil, Virgin hemp seed oil, Cannabis sativa L. seed oil ## Overview Cold-pressed hemp seed oil is derived from Cannabis sativa seeds and is rich in polyunsaturated fatty acids, including linoleic acid (omega-6) and alpha-linolenic acid (omega-3), in an approximately 3:1 ratio. It also contains gamma-linolenic acid (GLA) and tocopherols, though no human clinical trials have confirmed therapeutic health benefits from supplementation. ## Health Benefits • No clinical health benefits documented - the research dossier contains no human clinical trials or RCTs • Extraction method preserves nutrients - cold pressing below 49°C maintains oil quality without chemical solvents • Rich in polyunsaturated fatty acids - chemical analysis shows high triglyceride content • Higher purity than solvent extraction - mechanical pressing avoids chemical residues • Limited evidence base - no controlled studies on health outcomes available ## Mechanism of Action Linoleic acid (LA) and alpha-linolenic acid (ALA) in hemp seed oil serve as precursors to eicosanoids and endocannabinoids via elongase and desaturase enzyme pathways, potentially influencing inflammatory signaling through prostaglandin and leukotriene synthesis. Gamma-linolenic acid (GLA) is converted to dihomo-GLA (DGLA), which competes with arachidonic acid for COX and LOX enzyme activity, theoretically dampening [pro-inflammatory cytokine](/ingredients/condition/inflammation) production. Tocopherols (vitamin E isomers) present in the oil act as lipid-soluble antioxidants, quenching [free radical](/ingredients/condition/antioxidant)s and protecting polyunsaturated fatty acids from oxidative degradation within cell membranes. ## Clinical Summary No randomized controlled trials or human clinical studies have been conducted specifically on cold-pressed hemp seed oil as a supplement, making evidence-based therapeutic claims unsupported at this time. Observational and in vitro research suggests that the oil's 3:1 omega-6 to omega-3 ratio aligns with dietary recommendations for [cardiovascular](/ingredients/condition/heart-health) and inflammatory health, but these associations have not been tested in controlled human populations. Studies on individual components such as GLA from other sources (e.g., evening primrose oil) suggest modest [anti-inflammatory](/ingredients/condition/inflammation) effects, but these findings cannot be directly extrapolated to hemp seed oil without dedicated trials. The overall evidence base is currently limited to nutritional composition analysis and mechanistic hypotheses. ## Nutritional Profile Cold-pressed hemp seed oil is a pure lipid extract (~99-100% fat by composition) with no meaningful protein, carbohydrate, or fiber content. Total fat is approximately 100g per 100ml. The fatty acid profile is exceptionally well-characterized: linoleic acid (omega-6, LA) comprises approximately 54-60% of total fatty acids, alpha-linolenic acid (omega-3, ALA) approximately 15-25%, giving an omega-6:omega-3 ratio of approximately 2.5:1 to 3:1, considered nutritionally favorable. Gamma-linolenic acid (GLA, omega-6) is present at approximately 1-4%, a relatively rare fatty acid also found in evening primrose and borage oils. Oleic acid (omega-9) contributes approximately 9-11%. Stearidonic acid (SDA, omega-3) is present at approximately 0.5-2%. Saturated fatty acids (primarily palmitic and stearic acid) account for approximately 5-10% of total fatty acids. Tocopherols (vitamin E) are naturally preserved by cold-pressing, with gamma-tocopherol being the predominant form at approximately 90-100mg per 100g and alpha-tocopherol at approximately 5mg per 100g, contributing [antioxidant activity](/ingredients/condition/antioxidant). Phytosterols are present at approximately 80-100mg per 100g, predominantly beta-sitosterol, campesterol, and stigmasterol. Trace chlorophyll imparts a characteristic green color. Cannabidiol (CBD) and THC content in refined seed oil is negligible (below 10 ppm) as these compounds concentrate in trichomes of flowers, not seeds. Bioavailability of fatty acids is consistent with other liquid oils; ALA bioconversion to EPA and DHA in humans is limited (typically below 10% for EPA, below 1% for DHA), so omega-3 benefit is primarily as ALA substrate rather than long-chain omega-3 equivalence. ## Dosage & Preparation No clinically studied dosage ranges are available for cold-pressed hemp seed oil in any form (extract, powder, or standardized preparations), as no human trials have been documented in the research literature. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Cold-pressed hemp seed oil is generally considered safe for most adults when used as a dietary supplement or food oil, with the primary adverse effects being gastrointestinal discomfort such as loose stools or nausea at higher doses. The oil contains negligible THC and CBD, as these cannabinoids are found in the plant's flowers and leaves rather than the seeds, so psychoactive effects and cannabinoid-related drug interactions are not a concern. However, due to its anticoagulant fatty acid profile, individuals taking blood-thinning medications such as warfarin or aspirin should consult a physician before use, as high omega-3 intake may potentiate bleeding risk. Safety data for use during pregnancy and lactation is insufficient, and caution is advised until further research is available. ## Scientific Research The research dossier explicitly states that no human clinical trials, RCTs, or meta-analyses specifically on cold-pressed hemp seed oil were found. The available literature focuses exclusively on extraction methods and oil composition rather than clinical efficacy. No PubMed PMIDs or study details on design, sample size, or health outcomes are available. ## Historical & Cultural Context The research dossier contains no information on historical or traditional medicinal uses of cold-pressed hemp seed oil. No documentation of use in any traditional medicine systems was found in the available literature. ## Synergistic Combinations Limited data - no synergistic ingredients documented in research ## Frequently Asked Questions ### Does cold-pressed hemp seed oil contain THC or CBD? Cold-pressed hemp seed oil contains negligible amounts of THC (typically less than 0.001 mg/mL) and very low CBD, because these cannabinoids are concentrated in the flowers, leaves, and stalks of the Cannabis sativa plant, not the seeds. Reputable manufacturers test finished oil to confirm THC content falls below detectable or legally permissible thresholds, making it non-psychoactive. ### What is the omega-6 to omega-3 ratio in hemp seed oil? Cold-pressed hemp seed oil contains linoleic acid (omega-6) and alpha-linolenic acid (omega-3) in an approximately 3:1 ratio, which is frequently cited as close to the ideal dietary balance recommended for reducing chronic inflammation risk. It also provides roughly 1–4% gamma-linolenic acid (GLA), an omega-6 fatty acid less common in most dietary oils. ### How should cold-pressed hemp seed oil be stored to prevent rancidity? Because cold-pressed hemp seed oil is high in polyunsaturated fatty acids, it is highly susceptible to oxidation and should be stored in a sealed, dark glass bottle in the refrigerator at temperatures below 10°C. Exposure to light, heat, or oxygen accelerates lipid peroxidation, producing harmful aldehydes; properly stored oil typically has a shelf life of 12–14 months unopened and 6–8 weeks after opening. ### Can hemp seed oil be used for cooking at high temperatures? No — cold-pressed hemp seed oil has a low smoke point of approximately 165°C (330°F) and its high polyunsaturated fatty acid content makes it unstable under heat, causing rapid oxidation and the formation of harmful compounds. It is best used as a finishing oil, in salad dressings, or added to foods after cooking to preserve its nutritional profile and flavor. ### Is hemp seed oil the same as hemp extract or CBD oil? Hemp seed oil and CBD oil are distinct products derived from different parts of the Cannabis sativa plant. Hemp seed oil is cold-pressed exclusively from the seeds and contains fatty acids, tocopherols, and phytosterols but essentially no cannabinoids, whereas CBD oil (hemp extract) is derived from the aerial parts of the plant and is standardized to contain specific concentrations of cannabidiol (CBD), typically ranging from 250 mg to 3,000 mg per bottle. ### What nutritional profile makes cold-pressed hemp seed oil different from other seed oils? Cold-pressed hemp seed oil is distinguished by its high polyunsaturated fatty acid content and a balanced omega-6 to omega-3 ratio of approximately 3:1, making it nutritionally unique compared to oils like sunflower or safflower oil. The cold-pressing process below 49°C preserves the naturally occurring nutrients including tocopherols, phospholipids, and phytosterols without chemical solvents or heat degradation. This mechanical extraction method results in higher purity and minimal chemical residues compared to solvent-extracted alternatives. ### Is cold-pressed hemp seed oil safe to use during pregnancy and breastfeeding? While hemp seed oil itself is derived from seeds that are free of THC and CBD, there is limited research on its safety during pregnancy and breastfeeding. As with any supplement during these sensitive periods, it is advisable to consult with a healthcare provider before use. The oil's fatty acid composition may have theoretical nutritional value, but clinical evidence specific to pregnant or nursing individuals is not available. ### Does cold-pressed hemp seed oil have any known interactions with medications? Cold-pressed hemp seed oil is primarily a nutritional oil rich in fatty acids and does not contain pharmacologically active compounds like THC or CBD that would typically cause drug interactions. However, high doses of polyunsaturated fats may theoretically have mild anticoagulant properties, so individuals taking blood-thinning medications should consult their healthcare provider before adding it to their regimen. No significant medication interactions have been documented for hemp seed oil specifically. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*