Product Image

Hemp Oil

Manitoba Harvest
4.7
★ ★ ★ ★ ★
(84 ratings)
Gamma Linolenic Acid 420 mg
Omega-6 8000 mg
Omega-3 2000 mg
Product Image
Score81
A useful source of GLA and plant ALA for skin-oriented use, but it is omega-6-heavy and does not directly provide EPA or DHA.
How scoring works
Quantity:32 Liquid(s) • (63 servings)
Goals:
Skin Health
Anti-Inflammatory Support
Joint Health
Metabolism Boost

Score 81

A useful source of GLA and plant ALA for skin-oriented use, but it is omega-6-heavy and does not directly provide EPA or DHA.
How scoring works
$22.19($0.35 per serving)
Walmart
$ 22.19
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Analysis

A serving provides 2,000 mg ALA, 8,000 mg linoleic acid, 420 mg GLA, and 140 mg stearidonic acid. The GLA amount gives the oil a distinct skin-support role, while ALA does not deliver the same direct EPA and DHA exposure as fish or algae oil.

The liquid contains a broad plant-fat profile without cholesterol or sodium. Its omega-6 content substantially exceeds its omega-3 content, so it may add little for someone whose diet already contains abundant seed oils.

Each serving contributes 13 grams of fat and 121 calories, which matters when it is added rather than substituted for another dietary fat. The bottle suits users who want culinary-style hemp oil and can store a delicate liquid carefully.

Who is it for
  • People seeking plant-based GLA and ALA
  • Users who can substitute hemp oil for another dietary fat
Best for
  • GLA intake
  • Adding a plant-based fatty-acid blend to foods

Pros

  • 420 mg GLA per serving
  • 2,000 mg plant-based ALA
  • Liquid format is easy to add to cold foods

Cons

  • Provides no preformed EPA or DHA
  • Contains 8,000 mg omega-6 per serving
  • Adds 121 calories and 13 grams of fat

Warnings

  • Count the serving as a dietary fat because it adds 121 calories
  • Refrigerate after opening if the label directs and discard oil that smells rancid
  • Do not heat beyond label guidance because polyunsaturated hemp oil is oxidation-prone

Nutrient quality

86 Highest impact

Substantial and clearly differentiated plant fatty acids provide strong dose depth. Missing extraction and stabilization details limit oil-quality confidence.

Ingredient transparency

81 Highest impact

Active fatty-acid quantities are clearly disclosed without a hidden blend. Missing full directions, excipients, and some oil-quality details reduce completeness.

Customer satisfaction

65 Moderate impact

The supplied average rating is very strong and the rating volume is moderate. No specific experience details were provided to judge repeated complaints or purpose alignment.

Value for money

92 Highest impact

Formula quality and active-serving economics support strong practical value. It compares favorably within the category despite remaining disclosure gaps.

Report analysis

Goals

Skin Health
Impact
High effect
B Goal FitB Strength of SupportC+ CoverageA- Formula Quality
Gamma Linolenic Acid · 420 mgOmega-3 · 2000 mg

Hemp oil supplies a large GLA amount plus linoleic acid and ALA, supporting skin-barrier lipids and inflammatory balance. The fatty-acid profile is unusually transparent and provides a meaningful barrier-focused dose.

No extraction, oxidation-protection, or independent purity details are shown, and ALA is not equivalent to direct EPA or DHA. The formula lacks collagen, vitamin C, ceramides, or other structural and hydration actives.

Study evidence
Gamma Linolenic Acid Supportive 9 studies
Omega-3 Supportive 35 studies
Omega-6 Adverse 9 studies
Anti-Inflammatory Support
Impact
High effect
C- Goal FitB- Strength of SupportD+ CoverageB+ Formula Quality
Gamma Linolenic Acid · 420 mg

Hemp oil supplies gamma-linolenic acid and alpha-linolenic acid, which may support inflammatory balance through fatty-acid metabolism. The GLA amount is meaningful and fully disclosed.

A high linoleic acid load and limited evidence for hemp oil in systemic inflammation keep the conclusion cautious. The simple liquid provides focused fatty-acid support without covering antioxidant or enzyme-inhibition pathways.

Study evidence
Gamma Linolenic Acid Supportive 7 studies
Joint Health
Impact
Moderate effect
D+ Goal FitB- Strength of SupportD CoverageA- Formula Quality
Omega-3 · 2000 mgGamma Linolenic Acid · 420 mg

Hemp oil supplies ALA and a substantial GLA amount that may modestly support inflammatory balance. It does not provide direct EPA or DHA, and extraction, oxidation protection, and purity testing are not disclosed.

The oil offers a focused fatty-acid pathway without cartilage building blocks or lubrication support. Its joint evidence is less direct than concentrated marine omega-3 products.

Study evidence
Gamma Linolenic Acid Supportive 5 studies
Omega-3 Supportive 40 studies
Metabolism Boost
Impact
Moderate effect
D Goal FitD+ Strength of SupportD- CoverageB+ Formula Quality
Omega-3 · 2000 mg

Hemp-derived alpha-linolenic acid offers indirect metabolic support through fatty-acid nutrition. Its conversion to the more active marine omega forms is limited, so a direct effect on metabolic rate is uncertain.

The oil supplies a meaningful alpha-linolenic acid amount but no EPA or DHA. Its streamlined formula is easy to assess, though it covers few metabolic pathways.

Study evidence
Omega-3 Supportive 42 studies

Ingredients

IngredientAmount per serving
Calories
121 Calorie(s)
Total Fat
13 Gram(s)
Cholesterol
0 mg
Sodium
0 mg
Total Carbohydrates
1 Gram(s)
Protein
0 Gram(s)
Omega-3 (Alpha-Linolenic Acid)
2000 mg
Omega-6 (Linoleic Acid)
8000 mg
Gamma-Linolenic Acid
420 mg
Stearidonic Acid
140 mg
Adults 18–50 Vegan Kosher Vegetarian
Report overview
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The high GLA amount and explicit milligram disclosure make the active dose easy to assess. Hemp is naturally less concentrated in GLA than borage or black currant, while the missing extraction and stabilization details limit confidence in oil quality. The large liquid serving nevertheless delivers the active at favorable cost efficiency.

F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

A large omega-6 amount is fully broken down into linoleic acid and GLA, making the fatty-acid profile unusually clear. Hemp oil is a named seed-oil source rather than one of the specified premium GLA oils, and no gentle extraction method is stated. The low serving cost adds strong value for users who want a concentrated mixed-fatty-acid oil.

F Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
Hemp oil supplies ALA rather than direct EPA and DHA. Molecular form, antioxidant protection, and independent purity testing are not specified. EPA and DHA concentration and cost efficiency cannot be established, making it a poor fit for this marine-active benchmark.
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of Evening Primrose Oil on Korean Patients With Mild Atopic Dermatitis: A Randomized, Double-Blinded, Placebo-Controlled Clinical Study.
    Chung BY; Park SY; Jung MJ; Kim HO; Park CW · Annals of dermatology · 2022
    Randomized trial50 participantsSkin Health forGamma Linolenic Acid
  2. Meta-analysis of placebo-controlled studies of the efficacy of Epogam in the treatment of atopic eczema. Relationship between plasma essential fatty acid changes and clinical response.
    Morse PF; Horrobin DF; Manku MS; Stewart JC; Allen R; Littlewood S; Wright S; Burton J; Gould DJ; Holt PJ · The British journal of dermatology · 1989
    Meta-analysis9 studies pooledSkin Health forGamma Linolenic Acid
  3. Effect of borage oil consumption on fatty acid metabolism, transepidermal water loss and skin parameters in elderly people.
    Brosche T; Platt D · Archives of gerontology and geriatrics · 2005
    Non-randomized trial29 participantsSkin Health forGamma Linolenic Acid
  4. Reduced levels of prostaglandin precursors in the blood of atopic patients: defective delta-6-desaturase function as a biochemical basis for atopy.
    Manku MS; Horrobin DF; Morse N; Kyte V; Jenkins K; Wright S; Burton JL · Prostaglandins, leukotrienes, and medicine · 1983
    Non-randomized trial50 participantsSkin Health forGamma Linolenic Acid
  5. Effects of oral supplementation with evening primrose oil for six weeks on plasma essential fatty acids and uremic skin symptoms in hemodialysis patients.
    Yoshimoto-Furuie K; Yoshimoto K; Tanaka T; Saima S; Kikuchi Y; Shay J; Horrobin DF; Echizen H · Nephron · 1999
    Randomized trial16 participantsSkin Health forGamma Linolenic Acid
  6. Transepidermal water loss and water content in the stratum corneum in infantile seborrhoeic dermatitis.
    Tollesson A; Frithz A · Acta dermato-venereologica · 1993
    Single-arm trial37 participantsSkin Health forGamma Linolenic Acid
  7. Essential fatty acid metabolism and its modification in atopic eczema.
    Horrobin DF · The American journal of clinical nutrition · 2000
    Narrative reviewSkin Health forGamma Linolenic Acid
  8. Evening primrose oil (Epogam) in the treatment of chronic hand dermatitis: disappointing therapeutic results.
    Whitaker DK; Cilliers J; de Beer C · Dermatology (Basel, Switzerland) · 1997
    Randomized trial39 participantsSkin Health forGamma Linolenic Acid
  9. Effects of altering dietary essential fatty acids on requirements for non-steroidal anti-inflammatory drugs in patients with rheumatoid arthritis: a double blind placebo controlled study.
    Belch JJ; Ansell D; Madhok R; O'Dowd A; Sturrock RD · Annals of the rheumatic diseases · 1988
    Randomized trial49 participantsAnti-Inflammatory Support forGamma Linolenic Acid
  10. Systemic immune inflammation mediates the association of serum omega-3 and omega-6 polyunsaturated fatty acids with biological aging: a national population-based study.
    Shan F; Xiong Y; Pai P; Liu M · Aging clinical and experimental research · 2025
    Cross-sectional study3,376 participantsAnti-Inflammatory Support forGamma Linolenic Acid
  11. Evidence of effectiveness of herbal medicinal products in the treatment of arthritis. Part 2: Rheumatoid arthritis.
    Cameron M; Gagnier JJ; Little CV; Parsons TJ; Blümle A; Chrubasik S · Phytotherapy research : PTR · 2010
    Meta-analysis20 studies pooledAnti-Inflammatory Support forGamma Linolenic Acid
  12. Evening primrose oil in patients with rheumatoid arthritis and side-effects of non-steroidal anti-inflammatory drugs.
    Brzeski M; Madhok R; Capell HA · British journal of rheumatology · 1991
    Randomized trial40 participantsAnti-Inflammatory Support forGamma Linolenic Acid
  13. Prospective clinical trial examining the impact of genetic variation in FADS1 on the metabolism of linoleic acid- and ɣ-linolenic acid-containing botanical oils.
    Sergeant S; Hallmark B; Mathias RA; Mustin TL; Ivester P; Bohannon ML; Ruczinski I; Johnstone L; Seeds MC; Chilton FH · The American journal of clinical nutrition · 2020
    Randomized trial64 participantsAnti-Inflammatory Support forGamma Linolenic Acid
  14. Effectiveness of nonpharmacological and nonsurgical interventions for patients with rheumatoid arthritis: an overview of systematic reviews.
    Christie A; Jamtvedt G; Dahm KT; Moe RH; Haavardsholm EA; Hagen KB · Physical therapy · 2008
    Systematic review28 studies pooledJoint Health forGamma Linolenic Acid
  15. Herbal therapy for treating rheumatoid arthritis.
    Little C; Parsons T · The Cochrane database of systematic reviews · 2001
    Systematic review11 studies pooledJoint Health forGamma Linolenic Acid
  16. Herbal medicines for the treatment of rheumatoid arthritis: a systematic review.
    Soeken KL; Miller SA; Ernst E · Rheumatology (Oxford, England) · 2003
    Systematic review14 studies pooledJoint Health forGamma Linolenic Acid
  17. gamma-Linolenic acid treatment of rheumatoid arthritis. A randomized, placebo-controlled trial.
    Zurier RB; Rossetti RG; Jacobson EW; DeMarco DM; Liu NY; Temming JE; White BM; Laposata M · Arthritis and rheumatism · 1996
    Randomized trial56 participantsJoint Health forGamma Linolenic Acid
  18. Botanical lipids: effects on inflammation, immune responses, and rheumatoid arthritis.
    Rothman D; DeLuca P; Zurier RB · Seminars in arthritis and rheumatism · 1996
    Narrative reviewJoint Health forGamma Linolenic Acid
  19. Supplementation of fish oil and olive oil in patients with rheumatoid arthritis.
    Berbert AA; Kondo CR; Almendra CL; Matsuo T; Dichi I · Nutrition (Burbank, Los Angeles County, Calif.) · 2005
    Randomized trial43 participantsJoint Health forOmega-3
  20. Krill oil improved osteoarthritic knee pain in adults with mild to moderate knee osteoarthritis: a 6-month multicenter, randomized, double-blind, placebo-controlled trial.
    Stonehouse W; Benassi-Evans B; Bednarz J; Vincent AD; Hall S; Hill CL · The American journal of clinical nutrition · 2022
    Randomized trial235 participantsJoint Health forOmega-3
  21. Effects of omega-3 supplementation on lipid metabolism, inflammation, and disease activity in rheumatoid arthritis: a meta-analysis of randomized controlled trials.
    Wang W; Xu Y; Zhou J; Zang Y · Clinical rheumatology · 2024
    Meta-analysis1,018 participants18 studies pooledJoint Health forOmega-3
  22. Impact of type and dose of oral polyunsaturated fatty acid supplementation on disease activity in inflammatory rheumatic diseases: a systematic literature review and meta-analysis.
    Sigaux J; Mathieu S; Nguyen Y; Sanchez P; Letarouilly JG; Soubrier M; Czernichow S; Flipo RM; Sellam J; Daïen C · Arthritis research & therapy · 2022
    Meta-analysis1,420 participants30 studies pooledJoint Health forOmega-3
  23. A meta-analysis of the analgesic effects of omega-3 polyunsaturated fatty acid supplementation for inflammatory joint pain.
    Goldberg RJ; Katz J · Pain · 2007
    Meta-analysis17 studies pooledJoint Health forOmega-3
  24. Effects of omega-3 supplementation on glucose and lipid metabolism in patients with gestational diabetes: A meta-analysis of randomized controlled trials.
    Liu W; Gao M; Yang S; Sun C; Bi Y; Li Y; Wang J; Yuan X · Journal of diabetes and its complications · 2023
    Meta-analysis331 participants6 studies pooledMetabolism Boost forOmega-3
  25. Hepatic de novo lipogenesis is suppressed and fat oxidation is increased by omega-3 fatty acids at the expense of glucose metabolism.
    Green CJ; Pramfalk C; Charlton CA; Gunn PJ; Cornfield T; Pavlides M; Karpe F; Hodson L · BMJ open diabetes research & care · 2021
    Randomized trial38 participantsMetabolism Boost forOmega-3
  26. Clinical and metabolic response to flaxseed oil omega-3 fatty acids supplementation in patients with diabetic foot ulcer: A randomized, double-blind, placebo-controlled trial.
    Soleimani Z; Hashemdokht F; Bahmani F; Taghizadeh M; Memarzadeh MR; Asemi Z · Journal of diabetes and its complications · 2018
    Randomized trial60 participantsMetabolism Boost Skin Health forOmega-3
  27. The Effects of Flaxseed Oil Omega-3 Fatty Acids Supplementation on Metabolic Status of Patients with Polycystic Ovary Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Mirmasoumi G; Fazilati M; Foroozanfard F; Vahedpoor Z; Mahmoodi S; Taghizadeh M; Esfeh NK; Mohseni M; Karbassizadeh H; Asemi Z · Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association · 2018
    Randomized trial60 participantsMetabolism Boost forOmega-3
  28. A combination of omega-3 and plant sterols regulate glucose and lipid metabolism in individuals with impaired glucose regulation: a randomized and controlled clinical trial.
    Wang JF; Zhang HM; Li YY; Xia S; Wei Y; Yang L; Wang D; Ye JJ; Li HX; Yuan J; Pan RR · Lipids in health and disease · 2019
    Randomized trial200 participantsMetabolism Boost forOmega-3
  29. Dietetic intervention in psoriatic arthritis: the DIETA trial.
    Leite BF; Morimoto MA; Gomes CMF; Klemz BNC; Genaro PS; Shivappa N; Hébert JR; Damasceno NRT; Pinheiro MM · Advances in rheumatology (London, England) · 2022
    Randomized trial97 participantsSkin Health forOmega-3
  30. Omega-3 fatty acid supplement skin cancer prophylaxis in lung transplant recipients: A randomized, controlled pilot trial.
    Miura K; Vail A; Chambers D; Hopkins PM; Ferguson L; Grant M; Rhodes LE; Green AC · The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2019
    Randomized trial49 participantsSkin Health forOmega-3
  31. Treatment of hard-to-heal wounds in ischaemic lower extremities with a novel fish skin-derived matrix.
    Lee YJ; Han HJ; Shim HS · Journal of wound care · 2024
    Randomized trial50 participantsSkin Health forOmega-3
  32. Effect of eicosapentaenoic acid, an omega-3 polyunsaturated fatty acid, on UVR-related cancer risk in humans. An assessment of early genotoxic markers.
    Rhodes LE; Shahbakhti H; Azurdia RM; Moison RM; Steenwinkel MJ; Homburg MI; Dean MP; McArdle F; Beijersbergen van Henegouwen GM; Epe B; Vink AA · Carcinogenesis · 2003
    Randomized trial42 participantsSkin Health forOmega-3
  33. Psychosocial Burden in People with Atopic Dermatitis: Effects of a Substance-Free Basic Skincare in a Randomized Health Care Study.
    Braren-von Stülpnagel C; Augustin M; Sommer R; Westphal L · Skin pharmacology and physiology · 2024
    Randomized trial79 participantsSkin Health forOmega-6
  34. Abnormalities in epidermal lipid metabolism in patients with atopic dermatitis.
    Schäfer L; Kragballe K · The Journal of investigative dermatology · 1991
    Cross-sectional study15 participantsSkin Health forOmega-6
  35. Maternal plasma phosphatidylcholine fatty acids and atopy and wheeze in the offspring at age of 6 years.
    Pike KC; Calder PC; Inskip HM; Robinson SM; Roberts GC; Cooper C; Godfrey KM; Lucas JS · Clinical & developmental immunology · 2013
    Cohort study865 participantsSkin Health forOmega-6
  36. Plasma omega-3 and omega-6 concentrations and risk of cutaneous basal and squamous cell carcinomas in Australian adults.
    Wallingford SC; Hughes MC; Green AC; van der Pols JC · Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2014
    Cohort study1,191 participantsSkin Health forOmega-6
  37. Maternal PUFA status and offspring allergic diseases up to the age of 18 months.
    Yu YM; Chan YH; Calder PC; Hardjojo A; Soh SE; Lim AL; Fisk HL; Teoh OH; Goh A; Saw SM; Kwek K; Gluckman PD; Godfrey KM; Chong YS; Shek LP; Pan A; Chong MF; van Bever HP; GUSTO study group · The British journal of nutrition · 2015
    Cohort study960 participantsSkin Health forOmega-6