Alpha-Linolenic, Oleic & Linoleic Acid

Alpha-linolenic, oleic and linoleic acid reference formula at example amounts of 2,968 mg, 863 mg and 739 mg per serving, developed as softgels or an emulsified liquid.

Alpha-Linolenic, Oleic & Linoleic Acid is a reference formula for brands building a plant-oil fatty acid product around the three fatty acids that flaxseed-type oils carry together: omega-3 alpha-linolenic acid, omega-9 oleic acid and omega-6 linoleic acid. The example amounts are 2,968 mg, 863 mg and 739 mg per serving, and the brand sets the final amounts for its market. Reference labels span alpha-linolenic acid from 10.5 to 8,000 mg, so the example is a starting point rather than a standard.

The development work is about the oil, not the capsule: the three acids arrive together in one oil, their ratio follows the oil’s own profile, and a serving of several grams has to be spread over several softgels or built into a stable emulsion. Softgel and liquid are the two formats developed here.

Ingredient Composition

IngredientPer ServingRaw Material FormAlternative Form (same amount of active)
Alpha-Linolenic Acid2968 mg (example amount)Flaxseed oil, supplied as triglyceride oil; 2,968 mg alpha-linolenic acid per servingA fatty acid concentrate of known alpha-linolenic content, with the input recalculated from its assay
Oleic Acid863 mg (example amount)Carried by the same oil; 863 mg oleic acid per servingAdded from a high-oleic oil if the oil’s own level falls short
Linoleic Acid739 mg (example amount)Carried by the same oil; 739 mg linoleic acid per servingAdded from a linoleic-rich oil if the oil’s own level falls short

Amounts are stated as mg of each fatty acid, not as mg of oil. Molecular weights for reference: alpha-linolenic acid C18H30O2, 278.4 g/mol (PubChem CID 5280934); linoleic acid C18H32O2, 280.4 g/mol (PubChem CID 5280450); oleic acid C18H34O2, 282.5 g/mol (PubChem CID 445639). Triglyceride-bound and free fatty acid weights differ, so the specification states which basis applies.

Intended Benefits & Formula Rationale

This formula is designed for products positioned around plant-based essential fatty acid intake. Alpha-linolenic acid and linoleic acid are the two essential fatty acids, and oleic acid completes the profile that flaxseed-type oils deliver.

Intended Benefit DirectionKey IngredientsFormulation Rationale
Essential fatty acid intakeAlpha-Linolenic Acid, Linoleic AcidLinoleic acid (n-6) and alpha-linolenic acid (n-3) are essential fatty acids that humans cannot synthesize, and they give rise to the long-chain fatty acids that take part in regulating body homeostasis [1]. Evidence: Referenced
Flaxseed-oil fatty acid profileAlpha-Linolenic Acid, Oleic Acid, Linoleic AcidFlaxseed is a rich source of alpha-linolenic acid, and a review discusses the evidence and the limitations of dietary flaxseed across cardiovascular, gastro-intestinal, brain and hormonal topics [2]. Evidence: Mixed

The amounts are examples. The reviews in [1] and [2] describe the fatty acids and flaxseed in general, not this blend at these amounts, so any claim on a finished product is reviewed for each market.

Available Formats

The reference labels span softgels, liquids and a few capsules; softgel and liquid are developed here, because a serving of several grams of oil suits a soft shell or an emulsion.

FormatUnitPer ServingPack SizeOther Ingredients (typical)Suitability
Softgel5 softgelsAlpha-linolenic acid 2,968 mg, oleic acid 863 mg, linoleic acid 739 mg150 softgels (30 servings)Gelatin or plant-based shell, glycerin, purified water, antioxidantLead format; oil in a sealed shell
Liquid15.9 g (about one tablespoon)Alpha-linolenic acid 2,968 mg, oleic acid 863 mg, linoleic acid 739 mg480 g bottleWater, sweetener, glycerin, gum arabic, xanthan gum, citric acid, preservativeEmulsion of the oil in a flavored base

Raw Material Input & Fill (Design Estimate)

Design estimates. Flaxseed oil is assumed to carry 50% alpha-linolenic acid by weight, so 2,968 mg alpha-linolenic acid needs about 5,936 mg of oil per serving; the oil’s own oleic and linoleic acid are checked against the 863 mg and 739 mg targets once the supplier’s profile is known.

FormatRaw Material Input per UnitDesign FillBalance for ExcipientsVerification Before Scale-Up
SoftgelFlaxseed oil about 1,187 mg per softgel1,200 mg fill per softgel13 mgFatty acid profile of the oil, peroxide value, shell compatibility, fill weight variation, leak test
LiquidFlaxseed oil about 5,936 mg per 15.9 g serving15.9 g per servingabout 9,964 mgEmulsion droplet stability, phase separation, oxidation during shelf life, taste

Capsule with oil powder is a separate project, because a hard capsule would need an oil powder at a much larger fill; gummy and tablet versions would also be separate projects.

Formulation Considerations

Ratio set by the oil. The three fatty acids come from one oil, so the ratio of 2,968 : 863 : 739 follows the oil’s profile and is not set freely. If the supplier’s oil gives a different ratio, one of the other acids is added from a second oil or the example amounts are adjusted.
Oxidation of omega-3 oil. Alpha-linolenic acid is a polyunsaturated fatty acid in a liquid oil, so oxygen, light and heat are the main stability risks. Antioxidant choice, nitrogen flushing during filling and opaque packaging are decided in formulation, and the peroxide value is tracked on stability.
Serving size. About 5.9 g of oil per serving is five softgels or a tablespoon-size liquid dose. A brand that wants fewer softgels moves to a more concentrated oil, which changes the cost and the fatty acid ratio.
Emulsion stability. In the liquid format the oil sits in a water base with gum arabic and xanthan gum. Droplet size, viscosity and preservative system decide whether the product separates on the shelf.

Customization Options

Brands adjust the fatty acid amounts, the oil source, the format and the add-ons.

ParameterRangeNote
Alpha-linolenic acid per serving500, 1500 or 3000 mgExamples for the brand; softgel count falls with a concentrated oil
Oil sourceFlaxseed oil, or blends with other plant oilsThe oil sets the ratio of the three acids
FormatSoftgel or liquidCapsule with oil powder, gummy and tablet are separate projects
ShellGelatin or plant-basedPlant-based shell changes the fill compatibility check
Add-onsVitamin E, gamma-linolenic acidA fourth ingredient shifts the fatty acid ratio and the antioxidant plan

The pilot run confirms the oil’s fatty acid profile against the target ratio, softgel fill and seal, and emulsion stability after a heat cycle.

Flavor Options

FormatSuggested FlavorsWhy
LiquidLemon, orange, berryCitrus and berry flavors cover the taste of flax oil in a water base

Technical Status & Data Sources

ItemStatusDetails
Reference formulaNIH DSLDThe ingredient and amount come from a labeled product in the NIH DSLD (alpha-linolenic acid 2968 mg, oleic acid 863 mg and linoleic acid 739 mg on the label of CF043576; example DSLD labels 314176, 337699). The label names the three fatty acids and lists flaxseed oil among the other ingredients; flaxseed oil is set as the source.
SpecificationSet in formulationFlaxseed oil with a fatty acid profile of alpha-linolenic, oleic and linoleic acid at the target amounts; peroxide value, acid value, microbial and heavy-metal limits and method are fixed with the supplier. Unit size, fill weight and stability are set in formulation.
Data sourceNIH DSLDDSLD v9.4.0, downloaded 2026-01-10: 50,824 reference formulas merged from on-market labels with complete ingredient amounts. Counts show how labels are distributed.
Market reviewPer marketDose limits, labeling and claims are reviewed for each sales market before a finished product is developed.
ReferencesSources[1] Saini RK, Keum YS. Omega-3 and omega-6 polyunsaturated fatty acids: Dietary sources, metabolism, and significance – A review. Life Sci. 2018;203:255-267. DOI · PubMed<br>[2] Parikh M, Maddaford TG, Austria JA, et al. Dietary Flaxseed as a Strategy for Improving Human Health. Nutrients. 2019;11(5):1171. DOI · PubMed

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