Know2eat

Hazelnut oil

Corylus avellana

What hazelnut oil has been studied for

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

  • 1 Limited
3 things to know first — allergies, interactions and intake limits

About hazelnut oil

A strongly aromatic oil pressed from roasted or raw hazelnuts, with one of the highest monounsaturated shares of any culinary oil — its fatty-acid profile sits very close to olive oil, without the olive phenolics. It is bought for flavour and used in small amounts.

Also known as Filbert oil, Huile de noisette

Heart Health

The evidence in depth

Best supported: Limited

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
Limited evidence

Contains compounds associated with a favourable lipid response — chiefly oleic acid — and small trials of hazelnut-enriched diets report modest LDL cholesterol reductions. Those trials used whole nuts, and no controlled study has tested the oil on its own.

Limited evidence. Early human work, or mostly lab and animal research.

2 sources

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

Ask about Hazelnut oil

Ask about Hazelnut 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 fat7.4 g37%
Monounsaturated fat78 g—
Polyunsaturated fat10.2 g—
Cholesterol0 mg0%
EPA (omega-3)0 g—
DHA (omega-3)0 g—
DPA (omega-3)0 g—
Linoleic acid (omega-6)10.1 g—
Vitamins
Vitamin A0 µg0%
Vitamin C0 mg0%
Vitamin E47.2 mg315%
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 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, hazelnut (USDA FoodData Central, FDC ID 171427).

% 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.

  • rawPreserves aroma compounds and tocopherols

    Kept unheated, the oil retains the pyrazines and other roast-derived aroma compounds it is bought for, along with its vitamin E fraction.

Things to know

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

  • Allergy

    One of the more potent tree nut allergens

    Hazelnut is a major regulated allergen and a frequent cause of severe reactions in Europe, including in people whose allergy began as birch pollen cross-reactivity. Unrefined hazelnut oil retains nut protein and should be avoided outright in hazelnut allergy.

  • Worth knowing

    Aroma degrades with heat and time

    The roasted-nut aroma is the reason to buy this oil and it does not survive frying or long storage. Refrigerate after opening and use it as a finishing oil.

  • Worth knowing

    Used as an adulterant in olive oil

    Because its fatty-acid profile so closely resembles olive oil, hazelnut oil has historically been used to dilute it, and standard fatty-acid testing struggles to detect the substitution. This matters mainly as an allergen problem for hazelnut-allergic buyers of olive oil.