Know2eat

Sunflower oil

Helianthus annuus

What sunflower oil has been studied for

2 associations assessed — 1 with at least some human evidence behind it. Strongest first.

  • 1 Moderate
  • 1 Insufficient
4 things to know first — allergies, interactions and intake limits

About sunflower oil

Oil pressed from sunflower seeds, sold in two chemically distinct forms that share a name: the traditional linoleic type, which is the record described here, and a high-oleic type bred for frying stability. They behave quite differently in a pan and in a fatty-acid table.

Also known as Linoleic sunflower oil, High-linoleic sunflower oil

Heart HealthAntioxidant & Oxidative Stress

The evidence in depth

Best supported: Moderate

What each association actually rests on, and the papers behind it. A rating describes the state of the research, not how impressive the food is. How we rate evidence.

Blood lipid profile

Heart Health
Moderate evidence

Research suggests LDL cholesterol falls when sunflower oil replaces saturated fat, consistent with the wider trial literature on polyunsaturated-for-saturated substitution. As with the other seed oils, this is evidence about which fat is being displaced rather than about sunflower oil having a benefit of its own.

Moderate evidence. Several human studies point the same way, with real caveats.

3 sources

Deep research mode adds each paper’s own conclusion and stated limitations.

Oxidative stress markers

Antioxidant & Oxidative Stress
Insufficient evidence

Evidence is limited for sunflower oil and human oxidative-stress markers. It supplies vitamin E, but trials of vitamin E from food or supplements have generally not translated into consistent changes in oxidative damage markers, and the frying literature points in the opposite direction.

Insufficient evidence. Not enough human research to say anything useful yet.

2 sources

Deep research mode adds each paper’s own conclusion and stated limitations.

Ask about Sunflower oil

Ask about Sunflower oil

Answers are written only from the entries on this page — the same nutrients, compounds, claims and citations you can read above. Nothing is added from outside the database, and every answer lists what it was built from.

AI explanations are not switched on for this site, so there is nothing to ask here. Everything above is read straight from the database and does not need them.

Key nutrients

Nutrient content per 100 grams
NutrientAmount% DV
Macronutrients
Calories884 kcal44%
Protein0 g0%
Total fat100 g128%
Carbohydrate0 g0%
Fibre0 g0%
Total sugars0 g—
Water0 g—
Fats
Saturated fat10.1 g51%
Monounsaturated fat45.4 g—
Polyunsaturated fat40.1 g—
Cholesterol0 mg0%
EPA (omega-3)0 g—
DHA (omega-3)0 g—
DPA (omega-3)0 g—
Linoleic acid (omega-6)39.8 g—
Vitamins
Vitamin A0 µg0%
Vitamin C0 mg0%
Vitamin E41.1 mg274%
Vitamin K5.4 µg5%
Thiamin (B1)0 mg0%
Riboflavin (B2)0 mg0%
Niacin (B3)0 mg0%
Pantothenic acid (B5)0 mg0%
Vitamin B60 mg0%
Folate0 µg0%
Vitamin B120 µg0%
Minerals
Calcium0 mg0%
Iron0.03 mg0%
Magnesium0 mg0%
Phosphorus0 mg0%
Potassium0 mg0%
Sodium0 mg0%
Zinc0 mg0%
Selenium0 µg0%
Other measured compounds
Beta-carotene0 µg—
Alpha-carotene0 µg—
Lycopene0 µg—
Lutein + zeaxanthin0 µg—
Caffeine0 mg—
Ash0 g—

Nutrient values are per 100 g of the USDA reference entry named on this page and vary with variety, growing conditions, storage and preparation.

Source record: Oil, sunflower, linoleic (less than 60%) (USDA FoodData Central, FDC ID 171017).

% DV uses the FDA Daily Values for adults and children aged 4 and over. A dash means no Daily Value has been established for that nutrient.

Bioactive compounds

Compounds present in meaningful amounts. Presence is banded rather than quantified, because whole-food levels vary enormously with variety, growing conditions, storage and preparation.

How preparation changes things

Only effects with real support are listed. If a preparation method is missing, it is because nothing dependable is documented — not because it makes no difference.

  • friedIncreases aldehydes and lipid oxidation products

    Frying studies comparing oils at matched temperatures consistently find more aldehyde formation in high-linoleic oils than in oleic-rich or saturated ones, and levels climb with each reuse of the same oil.

  • rawPreserves tocopherols

    Sunflower oil is one of the richer natural sources of alpha-tocopherol among common oils. Refining and prolonged heating both reduce it; unheated use retains the most.

Things to know

Allergies, interactions and intake concerns. Every food gets this section — a reference where everything is uniformly good is not a reference.

  • Worth knowing

    Two different oils under one name

    High-oleic sunflower oil and conventional linoleic sunflower oil are not interchangeable. Bottles frequently do not say which one is inside, and the difference matters for both heat stability and fatty-acid intake.

  • Worth knowing

    Oxidation under repeated frying

    Conventional sunflower oil is among the most polyunsaturated frying oils in wide use, and repeated heating generates aldehydes and other secondary oxidation products in proportion to that polyunsaturated content. High-oleic versions are considerably more stable.

  • Allergy

    Sunflower seed allergy

    Uncommon but real, and reported more often with cold-pressed oil, which retains seed protein, than with refined oil.

  • Too much

    Energy density

    Pure fat. The per-100 g panel is not a portion; a tablespoon is.