Omega-6 names a family of fats, not a single ingredient. The GAPS book discusses the parent linoleic acid and the derivatives GLA, DGLA and arachidonic acid, alongside their roles in foods and the body. Understanding those names helps keep a whole food, a seed oil and a supplement from being treated as the same thing.[1]
From LA to Its Derivatives
| Name | Place in the Family |
|---|---|
| LA | Linoleic acid, the parent omega-6 obtained through food |
| GLA | Gamma-linolenic acid, a derivative of LA |
| DGLA | Dihomo-gamma-linolenic acid, made by elongating GLA |
| AA | Arachidonic acid, further along the omega-6 pathway |
This is a simplified family map, not every enzyme step. LA is a dietary essential parent; calling AA essential to cell functions does not make it a third universally essential parent fat. The body can make longer derivatives from LA.[2]
Food and Conversion in the GAPS Source
Campbell-McBride names nuts and oily seeds among food sources and discusses proper preparation. She says many people following GAPS obtain these fats through food, while some may benefit from supplements. Keep the food form and stage clear, especially with nuts and seeds.[1]
The book connects conversion difficulties with nutrient availability and toxic exposure, naming magnesium, zinc and vitamins B3, B6 and C. Those are the author’s described factors, rather than a diagnosis of a deficiency in every reader.[1]
GLA and DGLA Are Not the Same Oil Ingredient
Evening primrose, borage and blackcurrant seed oils are discussed as GLA sources. GLA can be elongated in the body to DGLA. Percentages describing GLA in an oil should not be assigned to both compounds or taken to mean the oil directly supplies an equal amount of DGLA.[1][2]
A prospective human oil study examined changes in these longer-chain fats after botanical oils and considered variation in fatty-acid metabolism. It helps clarify the conversion distinction; it is not a GAPS treatment or dosing trial.[2]
Arachidonic Acid in the Book
The source describes AA in membrane phospholipids and discusses its roles in cell activity, immunity and inflammatory pathways. It connects ongoing inflammation and enzymes involved in releasing AA from membranes with a need for replenishment in some patients.[1]
The food examples it emphasizes are fresh meat, eggs and dairy. That list should not become a claim that no other food can contain AA, or a reason to add an AA supplement automatically. Use the animal-food guide for related food groups and the GAPS food list for actual permissions.
Whole Foods and Processed Oils
A prepared nut or seed in the appropriate phase is different from a refined cooking oil. The source excludes processed fats while giving suitable foods and carefully handled oil blends their own roles. The processed-fat guide keeps those categories distinct.[1]
The book’s approximate 2:1 omega-3-to-omega-6 example applies to supplemental blends, not a formula for every plate. The parent-fat guide explains the ratio and storage context.
The Epilepsy Exception Stays Specific
For epilepsy, the book does not recommend plant or fish oil supplements for at least the first year. The later option it describes is cod liver oil after seizures have stopped for at least six months or longer, for a person prone to common colds during the cold season, with a tiny start and gradual increase. It is not a general instruction to restart GLA or another seed oil at that point.[1]
The source reports a seizure trigger in a proportion of patients and says the reason is unknown. Keep supplement decisions with the person’s seizure care and existing treatment. The omega-3 guide preserves the full passage in context.
Bring the Names Back to the Label
When comparing a product, note whether it supplies LA, GLA or another named fat, and whether the amount is per serving or a percentage. Do not assume every “omega-6 oil” has the same contents or purpose. For meals, begin with the permitted whole foods you can prepare.
If you want one place for product labels, introduction dates and observations, this is the companion. The Supplement Introduction Tracker is listed in my printable catalog.
For practical meal choices, return to the GAPS fats-and-oils kitchen guide.
References
- Campbell-McBride, N. Gut and Physiology Syndrome (2020), “Omega-6 fats,” LA/GLA/DGLA/AA, nutrients, food sources and AA discussion; “Essential fatty acids,” oil blends and complete epilepsy exception.
- Sergeant S, et al. Prospective Clinical Trial Examining the Impact of Genetic Variation in FADS1 on the Metabolism of Linoleic Acid– and Gamma-Linolenic Acid–Containing Botanical Oils. American Journal of Clinical Nutrition. 2020;111:1068–1078. DOI:10.1093/ajcn/nqaa023. Human botanical-oil study; GLA elongation and longer-chain metabolism.
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