Know2eat

Mustard oil

Brassica juncea

What mustard oil has been studied for

2 associations assessed — none with dependable human evidence behind them yet. Strongest first.

  • 2 Insufficient
3 things to know first — allergies, interactions and intake limits

About mustard oil

Cold-pressed oil from brown or black mustard seed, sharply pungent because myrosinase acting on seed glucosinolates releases allyl isothiocyanate. It is a staple cooking fat across eastern India, Bangladesh and Nepal, and its regulatory status differs sharply between countries.

Also known as Sarson ka tel, Kachi ghani oil, Pungent mustard oil

Heart Health

The evidence in depth

Best supported: Insufficient

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
Insufficient evidence

Evidence is limited for mustard oil and blood lipids. It carries a relatively high alpha-linolenic acid share, which would predict a favourable direction, but the few human trials are small and the erucic acid content confounds any straightforward reading.

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

3 sources

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

Cardiovascular risk markers

Heart Health
Insufficient evidence

Evidence is limited and difficult to interpret. A small number of Indian case-control and cohort analyses have reported lower coronary risk with mustard oil use compared with other cooking fats, while the animal erucic acid data and the regulatory restrictions point the other way. Neither body of evidence is strong enough to settle the question.

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

No source is attached to this association yet, so it is rated insufficient by default. It is listed because people commonly ask about it — not because there is evidence for it.

Ask about Mustard oil

Ask about Mustard 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%
Water0 g—
Fats
Saturated fat11.6 g58%
Monounsaturated fat59.2 g—
Polyunsaturated fat21.2 g—
Linoleic acid (omega-6)15.3 g—
Vitamins
Vitamin A0 µg0%
Vitamin C0 mg0%
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%
Copper0 mg0%
Manganese0 mg0%
Selenium0 µg0%
Other measured compounds
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, mustard (USDA FoodData Central, FDC ID 172337).

% 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.

  • cookedReduces allyl isothiocyanate

    Heating the oil until it smokes, the standard first step in much South Asian cooking, volatilises most of the pungent isothiocyanate and mellows the flavour. It does nothing to the erucic acid content.

Things to know

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

  • Avoid

    Erucic acid, and the labelling that follows from it

    Traditional mustard oil can contain 30 to 50 per cent erucic acid, a long-chain monounsaturated fatty acid that produced heart muscle lipid accumulation in several animal species. On that basis the US FDA permits mustard oil to be sold only labelled for external use, and the EU and several other regulators cap erucic acid in food fats well below the level traditional mustard oil contains. Human evidence of harm at dietary intakes is thin and contested, but the regulatory position is what it is, and low-erucic mustard cultivars exist for this reason.

  • Worth knowing

    Adulteration with argemone oil

    Mustard oil in South Asia has repeatedly been adulterated with oil from Argemone mexicana seed, causing large outbreaks of epidemic dropsy — a serious illness with oedema, heart failure and glaucoma caused by the alkaloid sanguinarine. Buying from regulated, sealed and tested supply is not a minor point with this oil.

  • Worth knowing

    Irritant when heated

    The allyl isothiocyanate that gives the oil its bite is a potent eye and airway irritant. Indian cooking convention is to heat the oil to smoking before use, which drives off much of the pungency but also means cooking in poorly ventilated kitchens with visibly smoking oil, itself a documented respiratory exposure.