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    Ingredient guide · Ingredient reference

    Foods with omega-6 fats: oil type changes the comparison

    Seeds, nuts and many vegetable oils contribute omega-6 fats. A named oil variety matters: high-oleic and linoleic sunflower oils have very different fatty-acid profiles.

    Read the evidence ↓

    Supplement Science Insights Editorial Team

    Published September 23, 2026

    Compare the food and the fatty-acid field

    USDA SR Legacy lists 18:2 polyunsaturated fat at 65.7 g per 100 g in its linoleic sunflower-oil entry, 50.952 g in soybean oil and 3.606 g in high-oleic sunflower oil. These historical records use an undifferentiated 18:2 field; it is not a complete assay of every omega-6 fatty acid or every possible isomer. [1]

    A family name does not specify one oil

    Linoleic acid is an omega-6 fatty acid; oleic acid is a different, monounsaturated fatty acid. The large contrast between the named sunflower-oil types shows why an ingredient list saying only sunflower oil may leave an important compositional question open. The data do not establish that all foods containing omega-6 are harmful or that a person should eliminate an essential fatty-acid family. [2]

    A hypothetical 10 g oil comparison

    At 10 g of oil, the listed 18:2 estimates are 6.57 g for linoleic sunflower, 5.095 g for soybean and 0.361 g for high-oleic sunflower. Hold the oil amount constant when comparing recipes. These values describe composition, not the health effect of replacing one oil in an entire diet. [1]

    Hypothetical example — compare specified portions using historical reference data
    Oil, 10 g18:2 field estimate
    Linoleic sunflower6.57 g
    Soybean5.095 g
    High-oleic sunflower0.361 g
    Foods with omega-6 fats: oil type changes the comparison — original article outline diagram
    Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

    Sources for this article

    1. USDA FoodData Central — SR Legacy April 2018 composition and portion tables
      Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
    2. Omega-3 Fatty Acids - Health Professional Fact Sheet
      Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.