Hemp oil
Hemp seed oil is a cold-pressed culinary oil with a balanced omega-6:omega-3 fatty-acid profile (~3:1, the ratio frequently recommended for human nutrition) and a small amount of gamma-linolenic acid. It is NOT the same as CBD oil — hemp SEED oil contains negligible cannabinoids. Use it as a culinary fat to supply essential fatty acids; don't expect it to perform like fish oil or CBD.
Quick decision guide
May help most
People who want a culinary plant oil with a balanced EFA profile, especially as a salad oil or cold drizzle. Vegans and vegetarians seeking dietary ALA. People avoiding fish for any reason.
Common dosing range
Culinary: 1–2 tablespoons (15–30 mL) per day as salad dressing or finishing oil. Softgel supplements typically deliver 1–3 g per serving.
When to expect effects
Fatty acid status changes over weeks; no single 'effect' to measure on a short timeline.
Watch out for
Don't confuse hemp seed oil with CBD oil. Don't heat-cook hemp oil — its high polyunsaturated content oxidizes at high temperatures.
Evidence snapshot
What is it
Hemp oil typically refers to oil cold-pressed from the seeds of Cannabis sativa (the hemp plant). It is distinct from CBD oil or hemp extract oil, which are concentrated cannabinoid extracts from the flower and leaves. Hemp seed oil is rich in essential fatty acids in a near-ideal 3:1 ratio of omega-6 to omega-3 fatty acids, along with gamma-linolenic acid (GLA), tocopherols, and protein traces.
Is it worth it for you?
Use this as a quick fit check, not a diagnosis.
Worth considering if…
Probably skip if…
Evidence at a glance
| Goal | Effect | Best fit | Time |
|---|---|---|---|
Source of essential fatty acids in the diet Good Evidence | Provides ~13 g LA, ~3.5 g ALA, ~0.6 g GLA per 30 mL serving (2 Tbsp) | Vegetarians, vegans, fish-avoidant adults seeking ALA; people who want a balanced LA:ALA ratio without flax | Plasma fatty acid composition shifts over 2–4 weeks of regular intake |
Cardiovascular biomarkers (cholesterol, triglycerides, platelets) Limited Evidence | No significant change vs no-supplementation control on lipid panel or platelet aggregation in 12-week RCT | Limited — hemp oil for CV biomarker improvement specifically is not supported | 12 weeks tested; no effect found |
Skin conditions (atopic dermatitis, dry skin) — topical or oral Limited Evidence | Small RCT showed reduced atopic dermatitis symptoms at 30 mL/day oral for 8 weeks; not replicated | Atopic dermatitis patients who tolerate plant-oil emollients topically and want to try a small oral trial | ≥8 weeks in the only available trial |
PMS, cyclical mastalgia (GLA hypothesis) Mixed Evidence | No direct hemp oil PMS trials; extrapolated from largely-negative EPO evidence | Not established | Not established |
'CBD-like' effects (anxiety, pain, inflammation) Weak Evidence | Negligible cannabinoid content; no pharmacological basis for CBD-like effects | None — wrong product | Not applicable |
Source of essential fatty acids in the diet
- Effect
- Provides ~13 g LA, ~3.5 g ALA, ~0.6 g GLA per 30 mL serving (2 Tbsp)
- Best fit
- Vegetarians, vegans, fish-avoidant adults seeking ALA; people who want a balanced LA:ALA ratio without flax
- Time
- Plasma fatty acid composition shifts over 2–4 weeks of regular intake
Cardiovascular biomarkers (cholesterol, triglycerides, platelets)
- Effect
- No significant change vs no-supplementation control on lipid panel or platelet aggregation in 12-week RCT
- Best fit
- Limited — hemp oil for CV biomarker improvement specifically is not supported
- Time
- 12 weeks tested; no effect found
Skin conditions (atopic dermatitis, dry skin) — topical or oral
- Effect
- Small RCT showed reduced atopic dermatitis symptoms at 30 mL/day oral for 8 weeks; not replicated
- Best fit
- Atopic dermatitis patients who tolerate plant-oil emollients topically and want to try a small oral trial
- Time
- ≥8 weeks in the only available trial
PMS, cyclical mastalgia (GLA hypothesis)
- Effect
- No direct hemp oil PMS trials; extrapolated from largely-negative EPO evidence
- Best fit
- Not established
- Time
- Not established
'CBD-like' effects (anxiety, pain, inflammation)
- Effect
- Negligible cannabinoid content; no pharmacological basis for CBD-like effects
- Best fit
- None — wrong product
- Time
- Not applicable
Evidence for 5 uses
AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.
Source of essential fatty acids in the diet
Supplement benefitHemp seed oil supplies linoleic acid (LA, omega-6) at ~56% of total fatty acids and alpha-linolenic acid (ALA, omega-3) at ~22%, giving an omega-6:omega-3 ratio of approximately 3:1 — close to the ratio frequently cited as desirable for human nutrition. It also contains 2–4% gamma-linolenic acid (GLA), a less common omega-6 derivative also found in evening primrose and borage oils. As a culinary fat for cold use it is a reasonable plant source of essential fatty acids, especially for people not eating fish or other ALA-rich foods like flax, chia, or walnuts.
Bottom line: Real role as a plant-source EFA-rich culinary oil. Don't expect it to substitute for EPA/DHA from fish oil.
Cardiovascular biomarkers (cholesterol, triglycerides, platelets)
Supplement benefitThe largest direct RCT of hemp seed oil (Kaul et al., 2008, n=86, 12 weeks) compared hemp, flax, and fish oils against no supplementation in healthy adults. Hemp oil produced expected shifts in plasma fatty acid composition but did NOT significantly change total cholesterol, LDL, HDL, triglycerides, or platelet aggregation vs control. Fish oil in the same trial did show triglyceride-lowering. Hemp oil supplies essential fatty acids but should not be conflated with fish oil for cardiovascular outcomes.
Bottom line: Don't expect cardiovascular biomarker improvements from hemp oil. Use fish oil (or icosapent ethyl prescription) if that's your goal.
Skin conditions (atopic dermatitis, dry skin) — topical or oral
Supplement benefitA small Finnish crossover study (Callaway et al., 2005, n=20 atopic dermatitis patients) found 8 weeks of 30 mL/day oral hemp seed oil reduced symptoms vs olive oil control. No large confirmatory RCTs have been done. The mechanistic basis is the GLA content (similar to evening primrose and borage), but the EPO/borage Cochrane reviews for eczema have been NEGATIVE — so the hemp oil signal is uncertain. Topically, hemp oil is a reasonable emollient with a high EFA profile.
Bottom line: Modest possible benefit in atopic dermatitis; weak evidence base. Topical use as an emollient is reasonable.
PMS, cyclical mastalgia (GLA hypothesis)
Mechanism onlyHemp oil's small GLA content (~0.6 g per 30 mL) has been theorized to help PMS and breast pain via the same evening-primrose-oil GLA mechanism. EPO itself has been studied for these indications with mostly negative results in modern systematic reviews. Hemp oil has not been directly studied for PMS in any RCT.
Bottom line: Mechanistic speculation only. Don't take hemp oil for PMS expecting reliable benefit.
'CBD-like' effects (anxiety, pain, inflammation)
Mechanism onlyHemp SEED oil is cold-pressed from the seeds and contains essentially no cannabidiol (CBD), THC, or other cannabinoids — those compounds are concentrated in the flowering tops, not the seeds. Products marketed as 'hemp oil' that claim CBD-like effects on anxiety, pain, sleep, or inflammation are either misleading consumers or contain actual CBD (which is regulated separately). The FDA has issued warning letters to companies blurring this distinction. If you want the effects associated with CBD, buy cannabidiol.
Bottom line: If you want CBD effects, buy CBD. Hemp seed oil is not a substitute and 'hemp oil = CBD' marketing is misleading.
How it works
How to take it
What to track
Bottom line: Treat hemp oil as a culinary plant oil with a desirable fatty-acid ratio. Use cold, store cold, replace every 2–3 months. If you want EPA/DHA, fish oil or algae oil is the right product.
4 commercial forms
Compare the main delivery options and what they’re best suited for.
Cold-pressed hemp seed oil (culinary)
Standard formMechanically pressed from raw hempseed without heat or solvents. The form used in research and culinary applications. Should be greenish in color, with a nutty taste; bottled in dark glass and refrigerated after opening.
Whole-food fat; fatty acid content per USDA composition tables.
Hemp seed oil softgels
Supplement formEncapsulated cold-pressed hemp seed oil, typically 1,000–3,000 mg per softgel. Useful if you want a portion-controlled supplement format without the taste; nutritionally equivalent to bulk culinary oil.
Same as culinary oil per gram; capsule shell adds nothing functionally.
'Full-spectrum hemp oil' / hemp extract oil (CBD)
Different productProducts labeled 'hemp extract,' 'full-spectrum hemp,' or 'phytocannabinoid hemp oil' typically refer to CBD-containing oils extracted from the flowering tops, NOT cold-pressed seed oil. They are a distinct product (cannabidiol) with a distinct evidence base and regulatory status. If the label specifies milligrams of cannabidiol (CBD) per serving, it's a CBD product — see the cannabidiol page.
Different product class — not hemp seed oil; see cannabidiol if interested.
Hemp protein powder
Different productHemp protein is the defatted seed cake left after pressing the oil. Contains ~50% protein with a complete amino acid profile and some residual omega-3. A separate product from hemp oil with different uses (protein supplementation, smoothies, baking).
Different product — protein supplement, not an oil.
Safety
Know the common side effects, key cautions, and who should avoid it.
Common side effects
Serious risks
Confusion with CBD oil: the bigger 'safety' issue is buying hemp seed oil thinking you're getting CBD effects — disappointment plus financial cost plus potentially delaying real treatment for the underlying issue.
Oxidation: hemp oil's high polyunsaturated content makes it unstable. Rancid oil supplies lipid peroxides that are pro-inflammatory. Refrigerate after opening and discard if it smells bitter or paint-like.
Don't heat-cook: heating polyunsaturated oils above ~150°C generates aldehydes (lipid peroxidation products). Use hemp oil cold or warm only; pick a more stable oil (olive, avocado, coconut, ghee) for sautéing or frying.
Who should avoid it
- People with known cannabis allergy.
- People expecting the product to function as CBD — wrong product for that purpose.
- Anyone subject to workplace drug testing who buys low-quality hemp products that may contain unintended THC traces — choose a third-party-tested brand.
Pregnancy & breastfeeding
Hemp SEED oil used as a culinary fat at 1–2 Tbsp/day is generally considered safe in pregnancy. Avoid products that conflate hemp oil with CBD; CBD safety in pregnancy is not established and the FDA cautions against use. If you want omega-3 supplementation in pregnancy, choose algae-derived DHA (≥200 mg/day) which has the strongest pregnancy data.
Bottom line: Hemp seed oil at culinary doses is well tolerated by most adults. The dominant 'safety' issue is buying it under the assumption it's CBD, not a side-effect profile.
Interactions
High-dose polyunsaturated oils have modest antiplatelet effect. Clinical significance at culinary doses is negligible; potentially worth noting at high softgel doses.
No direct interaction; adding hemp oil supplies more ALA and LA but not EPA/DHA. If you're already supplementing fish oil for EPA/DHA, hemp oil is redundant but not harmful.
No documented direct interaction; theoretical electrolyte concern with very large culinary doses is not clinically relevant.
Food sources
| Food | Amount | %DV |
|---|---|---|
| Hemp seed oil (cold-pressed) | 1 Tbsp 15 mL (~13.6 g fat: 56% LA, 22% ALA, 3% GLA) | — |
| Hemp seeds, hulled | 3 Tbsp 30 g (~14 g fat — same fatty-acid profile) | — |
| Hemp protein powder | 30 g (~3 g fat, ~15 g protein — defatted seed cake) | — |
Hemp seed oil (cold-pressed)
- Amount
- 1 Tbsp 15 mL (~13.6 g fat: 56% LA, 22% ALA, 3% GLA)
- %DV
- —
Hemp seeds, hulled
- Amount
- 3 Tbsp 30 g (~14 g fat — same fatty-acid profile)
- %DV
- —
Hemp protein powder
- Amount
- 30 g (~3 g fat, ~15 g protein — defatted seed cake)
- %DV
- —
Choosing a product
What to look for on the label — and what to be skeptical of.
Look for…
Be skeptical of…
Frequently asked questions
Is hemp oil the same as CBD oil?⌄
No, but the terminology is confusing. Hemp seed oil (from seeds) is a nutritional oil with no cannabinoids. CBD oil or hemp extract oil (from flowers/leaves) contains cannabinoids and has different uses and effects.
Will hemp oil get me high?⌄
No. Hemp seed oil contains essentially no THC or CBD. It will not produce psychoactive effects or impair driving.
Can I cook with hemp oil?⌄
Hemp seed oil has a low smoke point and oxidizes when heated. Use only cold or at very low temperatures (salads, drizzles, smoothies).
Is hemp oil a good omega-3 source?⌄
It provides some omega-3 (ALA), but flaxseed oil, chia, and fish oil are more concentrated sources. Hemp's strength is its balanced omega-6 to omega-3 ratio.
Will hemp oil show up on a drug test?⌄
Pure hemp seed oil should not. However, trace contamination is possible, especially with low-quality products. Frequent and high-volume consumers should be aware.
References by claim
Source of essential fatty acids in the diet
Cardiovascular biomarkers (cholesterol, triglycerides, platelets)
Kaul et al., 2008 — PubMed — Journal of the American College of Nutrition (2008) link
'CBD-like' effects (anxiety, pain, inflammation)
FDA Warning Letters re: CBD/hemp marketing claims, 2019–2024 — U.S. Food and Drug Administration (2024) link
Skin conditions (atopic dermatitis, dry skin) — topical or oral
Memorial Sloan Kettering — Hemp Seed Oil — About Herbs (2024) link
Track Hemp oil with Pilora
Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.
Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.