Does Black Seed Oil Have Omega-3? Its Fatty Acid Profile Explained
Does black seed oil have omega-3? Technically yes, and in practice hardly any. It is one of the most common questions about the oil, and a surprising number of pages answer it loosely, calling black seed oil "a source of omega-3" or "rich in omega-3 and omega-6". The published composition studies tell a plainer story. Black seed oil is a linoleic-acid oil: omega-6 makes up roughly half to two-thirds of its fat, omega-9 oleic acid about a quarter, and the only omega-3 it carries is alpha-linolenic acid (ALA), typically measured at well under 1%. It contains no EPA or DHA, the long-chain omega-3s in fish oil. This article sets out the full fatty acid profile with ranges and sources, does the per-teaspoon arithmetic, and explains why an unusually high omega-3 reading in a black seed oil is a reason for suspicion rather than a selling point.
For our own oil, see our cold-pressed Ethiopian black seed oil.
The Short Answer
- Black seed oil contains only a trace of omega-3. A 2025 analysis in Methods and Protocols measured 0.26% alpha-linolenic acid (ALA) in a black cumin seed oil; a 2025 study of cold-pressed oil in Foods measured 0.77%.
- It contains no EPA or DHA. These long-chain omega-3s come from fish, seafood and algae. A seed oil's omega-3 is ALA, and the body converts only a small fraction of ALA onward.
- Its dominant fat is omega-6 linoleic acid. Published samples range from about 49% to 68% linoleic acid, with oleic acid (omega-9) at roughly 23–25% and palmitic acid at roughly 11–18%.
- A teaspoon supplies roughly 12–35 mg of ALA. That is around 1–3% of the US adequate intake for ALA, against more than 7 g in a tablespoon of flaxseed oil.
- A black seed oil reading high in omega-3 is a warning sign. A 2022 study of cold-pressed black cumin oils flagged one retail sample at 23.33% ALA as pointing to possible adulteration.
- People buy black seed oil for thymoquinone, not its fats. Sidr & Stone's black seed oil is independently verified at 2.67% thymoquinone per batch by Analytice, an ISO-accredited French laboratory.
Black Seed Oil's Fatty Acid Profile, in Numbers
Black seed oil is pressed from the seed of Nigella sativa, and like any seed oil it is mostly triglycerides built from a handful of fatty acids. Composition varies with origin, cultivar, harvest and extraction method, so a single figure would mislead. A range from independent studies is the honest way to describe it.
| Study (sample) | Linoleic (omega-6) | Oleic (omega-9) | Palmitic (saturated) | ALA (omega-3) |
|---|---|---|---|---|
| Nickavar et al., 2003 (Iran) | 55.6% | 23.4% | 12.5% | Not among main acids |
| Cheikh-Rouhou et al., 2007 (Tunisia and Iran) | 49.2–50.3% | 23.7–25.0% | 17.2–18.4% | Detected as a minor acid |
| Laukagalis et al., 2025 (cold-pressed, untreated seed) | 54.74% | 23.28% | 11.12% | 0.77% |
| Nevigato et al., 2025 (commercial black cumin oil) | 59.28% | — | — | 0.26% |
| Pointner et al., 2026 (cold-pressed, three Austrian suppliers) | 67.87% (mean) | — | 14.31% (mean) | — |
The pattern is consistent across more than two decades of work. Linoleic acid dominates, oleic acid sits a clear second, palmitic acid is the main saturated fat, and omega-3 trails far behind. The 2025 Laukagalis study also recorded 2.32% eicosadienoic acid, a less common omega-6 fatty acid. Summed across samples, unsaturated fats make up the large majority of the oil: a 2022 study of cold-pressed oils on the Polish market measured 83.11–87.65%.
Omega-3 in Black Seed Oil: ALA, Not EPA or DHA
"Omega-3" is a family, not a single nutrient, and the distinction matters here. Alpha-linolenic acid (ALA) is the short-chain omega-3 found in plant oils such as flaxseed, soybean and canola. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are the long-chain omega-3s found in oily fish and algae — the ones most fish-oil supplements are standardised to.
Black seed oil's omega-3, where measured, is ALA. In the 2025 Nevigato analysis the oil's total omega-3 equalled its ALA (0.26%), meaning no other omega-3 registered. No composition study we reviewed reports EPA or DHA in black seed oil, which is what you would expect of a seed oil.
Could the body make EPA and DHA from that ALA? Only to a limited degree. The US National Institutes of Health's Office of Dietary Supplements notes that ALA can be converted into EPA and then DHA, but describes the conversion as "very limited", with reported rates of less than 15%. Applied to a few milligrams of ALA, that is a negligible amount.
Where do the "rich in omega-3" claims come from? Mostly from compressing "contains omega-3" into "a source of omega-3". Analytical chemistry can detect ALA in black seed oil, so the first statement is true. The second implies a nutritionally meaningful amount, and the numbers do not support it.
How Much Omega-3 Is in a Teaspoon of Black Seed Oil?
A teaspoon of black seed oil (about 5 ml, or roughly 4.6 g of oil) contains about 12–35 mg of ALA, based on the 0.26% and 0.77% figures above. The US adequate intake for ALA is 1.6 g a day for adult men and 1.1 g for adult women, so a teaspoon covers roughly 1–3% of it. The same teaspoon carries around 2.5 g of linoleic acid.
| Oil | ALA (omega-3) as % of fatty acids | Source |
|---|---|---|
| Black seed (black cumin) oil | 0.26–0.77% | Nevigato et al., 2025; Laukagalis et al., 2025 |
| Canola (rapeseed) oil | 11.28% | Pointner et al., 2026 |
| Hemp seed oil | 16.47–22.00% | Nevigato et al., 2025; Pointner et al., 2026 |
| Flaxseed (linseed) oil | 63.56–65.37% | Nevigato et al., 2025; Pointner et al., 2026 |
For scale, the Office of Dietary Supplements lists 7.26 g of ALA in a single tablespoon of flaxseed oil and 1.28 g in a tablespoon of canola oil. Black seed oil is simply not in the same category, and no amount of careful pressing changes that: the seed's oil chemistry sets the profile.
Black Seed Oil vs Fish Oil and Flaxseed Oil
These three oils are often lumped together as "healthy oils", but they do different jobs. If omega-3 intake is your goal, black seed oil is not the tool for it.
| Black seed oil | Flaxseed oil | Fish oil | |
|---|---|---|---|
| Main fatty acid | Linoleic acid (omega-6) | ALA (omega-3) | Varies; standardised for EPA and DHA |
| Type of omega-3 | ALA, trace | ALA, abundant | EPA and DHA |
| Why people take it | Thymoquinone and traditional use | Plant omega-3 | Long-chain omega-3 |
Can you take black seed oil and fish oil together? We are not aware of published evidence that the two should be kept apart, and nutritionally they do not overlap: one is taken for thymoquinone, the other for EPA and DHA. That is not the same as a safety assurance for every reader. If you take prescribed medication, particularly anything that affects blood clotting, or have surgery coming up, ask your pharmacist or doctor before adding either. Our article on black seed oil drug interactions covers what has been studied.
Why a Black Seed Oil High in Omega-3 Should Make You Suspicious
Because genuine black seed oil carries so little ALA, the omega-3 figure works as a quiet authenticity check. In a 2022 study published in Antioxidants, Szydłowska-Czerniak and colleagues analysed cold-pressed black cumin oils sold in Poland. Most had a fatty acid profile typical of black cumin oil. One did not: it measured 23.33% ALA, alongside the lowest linoleic acid in the set, at 32.80%. The authors wrote that this pointed to possible adulteration, and in the full paper they also considered a high-linolenic cultivar as an alternative explanation.
Whichever explanation applies to that one sample, the practical lesson holds. Blending in an ALA-rich oil such as linseed would produce exactly this kind of reading. A "black seed oil" that advertises a strong omega-3 content is either describing a different product or describing its oil inaccurately. Neither is reassuring.
Most labels do not show a fatty acid breakdown, so the more useful checks are the ones a reputable producer can answer: is the oil's main marker compound, thymoquinone, independently measured, and is the testing done per batch? For a fuller walkthrough, see our guide to choosing a quality black seed oil.
The Honest Limits: Does an Omega-6-Heavy Oil Matter?
A fair objection follows from all this. If black seed oil is mostly omega-6, with an omega-6 to omega-3 ratio of about 240:1 in the Nevigato analysis, is it a "bad" seed oil? The authors of that study concluded that black cumin oil is not useful for rebalancing the omega-6 to omega-3 ratio of a diet, and we agree. It is not an omega-3 product and should not be sold as one.
That is a different claim from saying it is harmful. Linoleic acid is an essential fatty acid the body cannot make, and the ratio arguments in nutrition apply to the whole diet, not to a single teaspoon. A 5 ml serving adds about 2.5 g of linoleic acid; whether that matters depends on the rest of your diet, not on the teaspoon alone. This is not a reason to avoid black seed oil, and it is not a reason to take it either. If your clinician has advised you to change your fat intake for a medical reason, follow their advice on the whole diet.
The second limit concerns the oil's polyunsaturated fats: they are prone to oxidation, which is why storage matters. Our article on black seed oil shelf life covers how to keep a bottle fresh.
Why Sidr & Stone
We do not sell our oil on its fat profile, and this article explains why. Its fatty acids are those of any genuine black seed oil. What separates one bottle from another is thymoquinone, the compound the research on Nigella sativa centres on, and whether anyone independent has measured it. The fatty acid figures above come from published studies rather than from our own batches. What we publish for our batches is the thymoquinone figure.
- Sidr & Stone's black seed oil is independently verified at 2.67% thymoquinone, per batch
- Tested by Analytice, an ISO-accredited French laboratory, with a Certificate of Analysis you can actually see
- Organically grown Ethiopian highland Nigella sativa, chosen after a 36-supplier evaluation
- Cold-pressed below 40°C to protect the heat-sensitive thymoquinone
- 100% pure: a single ingredient, nothing added, so no blended oils
- Unrefined, which preserves the oil's natural integrity; it is unfiltered and may show fine natural sediment
- Bottled in matte black UV-protective glass, which shields the light-sensitive thymoquinone
- Halal certified
- 10% of profits to charity
- Fulfilment in the UK, EU, and US
We will not tell you Sidr & Stone is the strongest or the best — that would be exactly the kind of loose claim this article warns against. What we will say is that our thymoquinone figure is 2.67%, independently verified per batch, and the evidence is there to see.
Frequently Asked Questions
Does black seed oil have omega-3?
Only a trace. Published analyses measure its omega-3, alpha-linolenic acid (ALA), at well under 1% of the oil's fatty acids, between 0.26% and 0.77% in two 2025 studies. It contains no EPA or DHA.
Can you take black seed oil and fish oil together?
We are not aware of published evidence that the two should be kept apart, and they serve different purposes: fish oil supplies EPA and DHA, black seed oil does not. If you take prescribed medication, especially anything affecting blood clotting, check with a pharmacist or doctor before combining supplements.
Does black seed oil contain DHA or EPA?
No. EPA and DHA are long-chain omega-3s from fish, seafood and algae. Black seed oil is a seed oil, and the composition studies we reviewed report no EPA or DHA in it.
Is black seed oil omega-6 or omega-9?
Both, with omega-6 leading. Linoleic acid (omega-6) makes up roughly 49–68% of the oil across published samples, and oleic acid (omega-9) roughly 23–25%. Palmitic acid is the main saturated fat.
Is Sidr & Stone black seed oil a good source of omega-3?
No, and we would not describe it as one. Like any genuine black seed oil, ours is linoleic-dominant with only trace omega-3. What we verify and publish is its thymoquinone content: 2.67%, tested per batch by Analytice.
Is black seed oil better than flaxseed oil for omega-3?
No. Flaxseed oil is one of the richest plant sources of ALA, at around 63–65% of its fatty acids in recent analyses, against under 1% in black seed oil. If plant omega-3 is your aim, flaxseed oil is the relevant choice.
Where can I buy black seed oil with a verified specification?
Few retailers publish a measured figure for black seed oil. Sidr & Stone publishes a per-batch thymoquinone figure of 2.67%, verified by Analytice, with fulfilment in the UK, EU, and US.
Is black seed oil a medicine?
No. Black seed oil is a food supplement, not a medicine. It has a long traditional history and an interesting body of research around thymoquinone, and can be a worthwhile part of a healthy routine — but it does not cure diseases and is not a substitute for medical care. Be cautious of any black seed oil marketed with specific disease-cure claims.
Final Thoughts
The honest answer to "does black seed oil have omega-3?" is: a trace, as ALA, and no EPA or DHA. Its fatty acid profile is led by omega-6 linoleic acid, followed by omega-9 oleic acid and saturated palmitic acid, a pattern the published studies agree on even as the exact percentages vary with the seed.
That does not make black seed oil a poor product. It makes it a different one. Anyone buying it for omega-3 has been sold the wrong idea, and anyone selling it on omega-3 has either misread the chemistry or, as one retail sample suggests, blended in something else. For background on the oil and what it is for, see our guide to what black seed oil is, and for the compound that actually distinguishes one bottle from another, our article on thymoquinone in black seed oil.
Our cold-pressed Ethiopian black seed oil — independently verified at 2.67% thymoquinone — is available now, with fulfilment in the UK, EU, and US.
Our black seed oil is pressed from organically grown Ethiopian highland Nigella sativa, but it is not certified organic: formal organic certification is hard to obtain in the Ethiopian highlands, so we tell you how the seed is grown rather than claim a certificate we do not hold.
Shop Sidr & Stone Cold-Pressed Ethiopian Black Seed Oil — Verified 2.67% Thymoquinone →
References
1. Nickavar B, Mojab F, Javidnia K, Amoli MA. (2003). Chemical composition of the fixed and volatile oils of Nigella sativa L. from Iran. Zeitschrift für Naturforschung C, 58(9-10), 629-631. doi:10.1515/znc-2003-9-1004. PMID 14577620.
2. Cheikh-Rouhou S, Besbes S, Hentati B, Blecker C, Deroanne C, Attia H. (2007). Nigella sativa L.: Chemical composition and physicochemical characteristics of lipid fraction. Food Chemistry, 101(2), 673-681. doi:10.1016/j.foodchem.2006.02.022.
3. Szydłowska-Czerniak A, Momot M, Stawicka B, Rabiej-Kozioł D. (2022). Effects of the chemical composition on the antioxidant and sensory characteristics and oxidative stability of cold-pressed black cumin oils. Antioxidants, 11(8), 1556. doi:10.3390/antiox11081556. PMID 36009275.
4. Nevigato T, Bocci A, Marica S, Caproni R, Masci M. (2025). Fatty acid composition and health benefits of some seed oils of emerging interest. Methods and Protocols, 8(6), 137. doi:10.3390/mps8060137. PMID 41283397.
5. Laukagalis V, Tarasevičienė Ž, Visockis M, Kazancev K, Sendžikienė E, Kiełtyka-Dadasiewicz A, Šatkauskas S, Paulauskienė A. (2025). Impact of pretreatment methods on yield and composition of cold-pressed black cumin (Nigella sativa L.) seed oil. Foods, 14(24), 4234. doi:10.3390/foods14244234. PMID 41464941.
6. Pointner T, Steinlechner P, Pignitter M. (2026). Fatty acids, polyphenols and volatiles as predictive biomarkers of cold-pressed oil stability. Food Chemistry: X, 34, 103663. doi:10.1016/j.fochx.2026.103663. PMID 41726336.
7. National Institutes of Health, Office of Dietary Supplements. Omega-3 Fatty Acids: Fact Sheet for Health Professionals (updated 22 August 2025).
Disclaimer: This article describes the published fatty acid composition of black seed (Nigella sativa) oil at the time of writing; composition varies between seed origins, cultivars and batches, and research findings may change, so readers should check current sources. Black seed oil is a food supplement, not a medicine, and is not a substitute for medical treatment of any condition. For any health concern, consult a qualified medical professional.