Symptoms of Low Hemp Oil: Causes and Treatment
Deficiency
Symptoms & causes
Hemp oil (hemp seed oil) is not a nutrient — no deficiency syndrome exists — it is a plant-based cooking oil with a favorable omega-3 to omega-6 ratio and modest nutritional value; it contains no significant CBD or THC, making it legally and biologically distinct from CBD oil; health claims far exceed the available human trial evidence.
Searching for 'hemp oil deficiency symptoms' reflects a common confusion created by the wellness industry. Hemp seed oil is a culinary oil pressed from Cannabis sativa seeds, not a cannabinoid supplement. It contains no significant CBD or THC, and because it is not an essential nutrient, the body cannot be 'deficient' in it. Its primary nutritional value lies in its fatty acid profile — a roughly 3:1 ratio of omega-6 to omega-3 — but the clinical evidence for specific health benefits remains limited to one small trial for eczema.
This is general nutrition and wellness information, not medical advice. If you're on a weight-loss medication or managing a health condition, confirm specifics with your clinician.
Symptoms of low Hemp oil / hemp seed oil — cold-pressed oil extracted from Cannabis sativa seeds (NOT from the flowers, leaves, or stalk — the CBD-containing parts of the plant). Primary fatty acid composition: approximately 55–60% linoleic acid (omega-6 LA), 15–20% alpha-linolenic acid (omega-3 ALA), 10–15% oleic acid (omega-9), and approximately 2–3% gamma-linolenic acid (GLA — an omega-6 PUFA with anti-inflammatory properties). The omega-6:omega-3 ratio is approximately 3:1, considered close to the ideal 2–4:1 recommended ratio. CBD and THC content: hemp seed oil produced from seeds contains negligible or undetectable CBD and THC — it is legally and nutritionally distinct from CBD oil (which is extracted from the plant's flowers and leaves). No RDA or established deficiency syndrome. Not a nutrient in the classical sense.
Everyday signs are on the left; the ones on the right mean it's time to check in with a clinician.
Everyday signs
Common symptoms
- Not applicable — no hemp oil deficiency phenotype exists
- ALA insufficiency symptoms (the closest relevant concern) include dry skin, poor wound healing, increased inflammatory markers — but these are rarely caused by low ALA specifically given multiple dietary ALA sources
Don't wait
See a doctor if
- Dry skin, skin rashes, or inflammatory skin conditions (eczema, psoriasis) warrant clinical dermatological evaluation — not hemp oil supplementation as first-line treatment
- High omega-6:omega-3 dietary imbalance is a real cardiovascular and inflammatory risk factor to discuss with a clinician
Who is most likely to run low
Some people are more prone to falling short than others — including many people on a weight-loss journey who are simply eating less.
- No deficiency population exists
- Populations potentially interested in hemp oil: people seeking plant-based omega-3 sources (vegans, vegetarians), people with skin conditions (eczema — topical hemp oil has limited evidence), people with joint pain, people exploring cannabis-adjacent wellness products
What causes low Hemp oil / hemp seed oil — cold-pressed oil extracted from Cannabis sativa seeds (NOT from the flowers, leaves, or stalk — the CBD-containing parts of the plant). Primary fatty acid composition: approximately 55–60% linoleic acid (omega-6 LA), 15–20% alpha-linolenic acid (omega-3 ALA), 10–15% oleic acid (omega-9), and approximately 2–3% gamma-linolenic acid (GLA — an omega-6 PUFA with anti-inflammatory properties). The omega-6:omega-3 ratio is approximately 3:1, considered close to the ideal 2–4:1 recommended ratio. CBD and THC content: hemp seed oil produced from seeds contains negligible or undetectable CBD and THC — it is legally and nutritionally distinct from CBD oil (which is extracted from the plant's flowers and leaves). No RDA or established deficiency syndrome. Not a nutrient in the classical sense.
- Not applicable — no recognized clinical deficiency syndrome for hemp oil
How low levels are diagnosed
No diagnostic test for hemp oil status. ALA status: plasma ALA as part of a fatty acid panel; rarely tested clinically.
How it's corrected
Most gaps close with food first, and supplementation when a clinician recommends it.
Not applicable for deficiency. Culinary use: hemp seed oil is used as a salad dressing oil, added to smoothies, or as a finishing oil (not suitable for high-heat cooking due to low smoke point ~330°F and PUFA instability at high temperatures). Typical doses in trials: 30–45 mL/day hemp oil. Topical use: some evidence from small trials for eczema/atopic dermatitis symptom reduction.
How to keep levels up
Not applicable. Hemp oil can be a useful source of dietary ALA and GLA in a balanced diet but is not uniquely necessary.
When to see a clinician
For skin conditions — dermatologist evaluation. For omega-3 status and cardiovascular risk — clinician lipid panel. Not a medical product requiring clinical monitoring at normal culinary doses.
Hemp Oil vs. CBD Oil: A Distinction the Wellness Industry Deliberately Blurs
If you landed here searching for 'hemp oil deficiency symptoms,' you have already encountered the wellness industry's most successful branding trick — selling a cooking oil as though it were a cannabinoid supplement. Hemp seed oil and CBD oil are fundamentally different products, but their labels, bottle designs, and marketing language are deliberately similar.
Hemp seed oil is cold-pressed from the seeds of the Cannabis sativa plant. It contains fatty acids — primarily linoleic acid (omega-6), alpha-linolenic acid (omega-3), oleic acid (omega-9), and a small amount of gamma-linolenic acid (GLA). It contains no significant CBD, no THC, and no psychoactive or cannabinoid properties whatsoever. The FDA recognizes hemp seed oil as a food ingredient that is generally recognized as safe (GRAS).
CBD oil, by contrast, is extracted from the flowers and leaves of the cannabis plant. It contains cannabidiol — a phytocannabinoid with its own pharmacology, including modulation of the endocannabinoid system, anticonvulsant properties, and documented drug interactions via the CYP3A4 liver enzyme pathway. Its legal status varies by jurisdiction, and it is regulated differently from food oils.
The GLA in hemp oil deserves a brief mention because it is biochemically interesting. Unlike most omega-6 fatty acids, which are metabolized into pro-inflammatory compounds via arachidonic acid, GLA is converted to dihomo-gamma-linolenic acid (DGLA), which produces anti-inflammatory eicosanoids. This is a real nutritional distinction, but the amount of GLA in hemp oil is small — roughly 2 to 3 percent of total fatty acids — making it an inefficient source compared to evening primrose oil or borage oil.
- Hemp seed oil: pressed from seeds, fatty acids only, no cannabinoids, legal food ingredient
- CBD oil: extracted from flowers and leaves, contains cannabidiol, pharmacological effects, regulated differently
- GLA content in hemp oil (~2-3%) is anti-inflammatory in mechanism but too low for therapeutic dosing
Bottom line
Hemp seed oil and CBD oil are completely different products — hemp seed oil contains no significant CBD or THC and is legally and pharmacologically a cooking oil; the wellness industry's branding deliberately exploits the confusion to boost perceived value.
The Fatty Acid Profile: Why Hemp Oil's Omega-6:Omega-3 Ratio Gets Attention
The nutritional case for hemp oil rests almost entirely on its fatty acid composition. Western diets typically have omega-6 to omega-3 ratios between 15:1 and 20:1 — far above the 2:1 to 4:1 range that epidemiological research associates with reduced cardiovascular and inflammatory risk. Hemp oil, with a ratio of approximately 3:1, sits squarely in that favorable zone.
To put this in perspective, corn oil has an omega-6 to omega-3 ratio of roughly 46:1. Sunflower oil is around 40:1. Soybean oil, the most common cooking oil in the American food supply, is approximately 7:1. Hemp oil's 3:1 ratio is genuinely better than these dominant oils. But it is not the best plant source of omega-3s. Flaxseed oil has a ratio of roughly 1:4 — it is heavily omega-3 dominant — and provides far more alpha-linolenic acid (ALA) per tablespoon than hemp oil.
The ALA in hemp oil is subject to the same metabolic limitation that affects all plant-based omega-3 sources: the human body converts only about 5 to 10 percent of ALA to EPA, and less than 5 percent of that EPA to DHA. This means hemp oil is not a substitute for marine omega-3 sources if the clinical goal is raising EPA and DHA levels. The GLA content, while modest, does give hemp oil a nutritional feature that most cooking oils lack — but it is not enough to classify hemp oil as a therapeutic anti-inflammatory agent.
- Hemp oil omega-6:omega-3 ratio: ~3:1 (favorable)
- Corn oil: ~46:1, sunflower oil: ~40:1, soybean oil: ~7:1
- Flaxseed oil: ~1:4 (omega-3 dominant, higher ALA per tablespoon)
- ALA to EPA conversion: 5-10%; EPA to DHA: <5%
Bottom line
Hemp oil's 3:1 omega-6:omega-3 ratio is genuinely favorable compared to common cooking oils — but it is not a marine omega-3 source, ALA conversion to EPA/DHA is limited, and flaxseed oil provides a larger omega-3 dose per tablespoon.
Skin Health Claims: The Eczema Evidence and Topical vs. Oral Use
The strongest clinical evidence for hemp oil comes from a single randomized controlled trial on atopic dermatitis, published in 2005 by Callaway and colleagues. In this crossover study, 20 patients with eczema consumed 30 mL of hemp seed oil daily for 20 weeks, compared to olive oil as a control. The hemp oil group showed significant improvements in skin dryness, itching, and reduced use of topical medications. The researchers attributed these effects to the ALA and GLA content supporting skin barrier function.
This is a credible, well-designed study, but it is small and has not been replicated in larger trials. Topical application of hemp oil has even less evidence — a handful of small studies suggest it may improve skin moisture and barrier function in dry or sensitive skin, but the dermatology literature does not support hemp oil as a first-line treatment for any skin condition.
What the evidence does not support is using hemp oil to treat severe eczema requiring immunosuppressant therapy, or as a treatment for psoriasis. Evening primrose oil, which contains roughly 10 percent GLA compared to hemp oil's 2 to 3 percent, has been more extensively studied for eczema, though a 2013 Cochrane review found the evidence for evening primrose oil in eczema was also inconclusive.
For people on GLP-1 medications experiencing rapid weight loss, skin dryness can occur as subcutaneous fat decreases. Hemp oil as a dietary oil may be mildly supportive for skin barrier function through its fatty acid content, but this is an observation based on mechanism, not clinical trial data. It is not a treatment for GLP-1-related skin changes.
- Callaway 2005 RCT: 30 mL/day hemp oil for 20 weeks improved eczema dryness and itching vs. olive oil
- Study was small (n=20) and has not been replicated
- Evening primrose oil has higher GLA (~10%) and more eczema research, but evidence remains inconclusive
- Not a treatment for psoriasis or severe eczema
Bottom line
Hemp oil has one small, well-designed RCT supporting improvement in eczema symptoms — the most credible clinical evidence for hemp oil as a dietary oil; topical use has even weaker evidence; severe eczema requires dermatological treatment.
Marketing Claims vs. Reality: Heart Health, Inflammation, and Weight Loss
Wellness marketing frequently positions hemp oil as a heart-healthy, anti-inflammatory, weight-loss-promoting superfood. The reality is that direct clinical evidence for these claims is thin to nonexistent. The favorable omega-6 to omega-3 ratio makes it plausible that replacing high-omega-6 oils with hemp oil could benefit cardiovascular health, but no large randomized controlled trial has tested hemp oil specifically for cardiovascular outcomes. The evidence for ALA and heart health comes from dietary pattern studies — particularly the Mediterranean diet — and from trials using flaxseed, not hemp oil.
The anti-inflammatory claim rests on GLA's biochemical pathway: GLA is converted to DGLA, which produces anti-inflammatory eicosanoids rather than the pro-inflammatory compounds derived from arachidonic acid. This mechanism is real, but hemp oil's GLA content is too low to achieve therapeutic anti-inflammatory dosing. Evening primrose oil and borage oil provide far higher concentrations of GLA and are the appropriate choices if GLA supplementation is the clinical goal.
Weight loss claims for hemp oil have no direct evidence. Hemp oil contains approximately 120 calories per tablespoon — the same as olive oil, canola oil, or any other dietary fat. It is not a low-calorie food, and its fatty acid profile does not confer fat-burning properties. Any suggestion that hemp oil promotes weight loss is marketing, not science.
Hemp seed protein, which is present in whole hemp seeds and hemp protein powder but not in the pressed oil, does contain all essential amino acids and is a legitimate plant-based protein source. But this nutritional benefit does not extend to the oil, which contains minimal protein.
- No large RCTs on hemp oil for cardiovascular outcomes
- GLA anti-inflammatory mechanism is real, but hemp oil GLA content (~2-3%) is too low for therapeutic effect
- Evening primrose oil (~10% GLA) and borage oil (~20-24% GLA) are better GLA sources
- Hemp oil is 120 calories per tablespoon — no weight loss advantage
- Hemp protein benefits apply to seeds and powder, not the oil
Bottom line
Hemp oil's marketing claims for heart health, anti-inflammation, and weight loss vastly exceed the direct clinical evidence from trials specifically on hemp oil; its favorable fatty acid ratio is real but shared or exceeded by better-studied oils.
Hemp Oil and GLP-1 Therapy: A Healthy Cooking Oil, Not a Supplement
For patients taking semaglutide, tirzepatide, or other GLP-1 receptor agonists, hemp seed oil is a reasonable culinary choice with no special risks or benefits. It has no significant drug interactions with GLP-1 medications — it is a food oil, not a pharmacologically active compound. The primary consideration is its role within a calorie-reduced diet.
When choosing cooking oils on a GLP-1 medication, the goal is typically to maximize nutritional quality within a limited calorie budget. Hemp oil's 3:1 omega-6 to omega-3 ratio makes it a better choice than high-omega-6 oils like corn or sunflower oil. However, olive oil — dominant in oleic acid with well-documented anti-inflammatory effects and the strongest cardiovascular outcome evidence of any dietary fat — and flaxseed oil, with its superior ALA content, remain more strongly evidence-supported choices.
Hemp oil's GLA content may offer modest skin barrier support during rapid GLP-1-induced weight loss, when subcutaneous fat loss can worsen skin dryness. This is a mechanistic observation, not a proven clinical benefit. Patients on GLP-1 therapy sometimes ask about CBD for medication-related nausea or anxiety — hemp seed oil does not contain CBD and will not address these concerns. It is also not a substitute for marine omega-3 supplementation if omega-3 status is low.
- No drug interactions with semaglutide or tirzepatide
- 120 calories per tablespoon — equivalent to other oils
- Olive oil has stronger cardiovascular outcome evidence
- Flaxseed oil provides more ALA per tablespoon
- Does not contain CBD — will not address GLP-1-related nausea or anxiety
- Not a replacement for marine omega-3 (EPA/DHA) supplementation
Bottom line
Hemp oil is a reasonable plant-based cooking oil choice for GLP-1 patients — better omega ratio than corn or sunflower oil — but provides no CBD, no unique pharmacology, and is not a supplement; olive oil and flaxseed oil have stronger evidence backing as culinary oil choices.
What most pages leave out
The wellness industry markets hemp oil as a near-medicinal product by exploiting the visual and naming similarity to CBD oil. The honest distinction: hemp seed oil contains no significant cannabinoids, is pharmacologically a cooking oil, and has one reasonable small clinical trial for eczema as its best evidence. Claims about heart health and inflammation are based on fatty acid chemistry extrapolated from broader dietary fat research, not hemp-oil-specific RCTs. Evening primrose oil or borage oil are better sources of therapeutic GLA if anti-inflammatory GLA supplementation is the goal.
We flag this so you can make an informed choice — not to scare you off.
❓Frequently Asked Questions
None — hemp oil is a cooking oil, not an essential nutrient, and no deficiency syndrome exists. ALA inadequacy (the closest relevant concern) is uncommon given multiple plant oil sources in typical diets.
No. Hemp seed oil is cold-pressed from seeds and contains negligible CBD and THC. CBD oil is a completely different product extracted from the plant's flowers and leaves. The FDA recognizes hemp seed oil as a food ingredient with no cannabinoid content.
One small randomized controlled trial found that 30 mL of hemp seed oil daily for 20 weeks improved skin dryness and itching in people with atopic dermatitis compared to olive oil. The evidence is limited to this single study, and severe eczema requires dermatological treatment, not dietary oil supplementation.
Hemp oil has an omega-6 to omega-3 ratio of approximately 3:1, which is significantly more favorable than corn oil or sunflower oil. The omega-3 it provides is alpha-linolenic acid (ALA), not the marine omega-3s EPA or DHA, and ALA conversion to EPA and DHA in the body is limited.
Hemp oil is suitable only for low-heat applications. Its smoke point is approximately 330°F, and its polyunsaturated fats degrade at high temperatures. It is best used as a finishing oil, in salad dressings, or added to smoothies.
Generally yes — both terms refer to cold-pressed oil from Cannabis sativa seeds. Both are distinct from hemp extract oil or CBD oil, which are extracted from the plant's flowers and leaves and contain cannabinoids.
No. There is no direct evidence that hemp oil promotes weight loss. At 120 calories per tablespoon, it is as calorically dense as any other cooking oil. Its fatty acid profile does not confer fat-burning properties.
Yes. Hemp seed oil is a food with no known pharmacological interactions with GLP-1 medications. At normal culinary doses it is safe, and it does not provide CBD or THC that could introduce drug interactions.
Medically reviewed by
Chet Tharpe, MDBoard-certified physician
Last reviewed July 2026
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This content is for general informational purposes only and is not medical or nutritional advice, a diagnosis, or a substitute for professional judgment. It does not account for your health, medications, or goals, and nutrition information changes over time. Always talk with a qualified clinician or dietitian before making significant changes to your diet, supplements, or medications. Curex offers compounded GLP-1 medications through licensed clinicians and does not sell or endorse the food or supplement reviewed on this page.