Last reviewed on 12 September 2026.
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The research does not crown a winner. What it does offer is a clear idea of what each oil brings, which fats to limit, and why the amount and the reheating habits in a kitchen outweigh the choice of bottle. Figures here are approximate, because fatty acid profiles vary with seed variety and processing.
Is there one best cooking oil for Indian food?
No. Every oil is a mixture of saturated, monounsaturated and polyunsaturated fatty acids, and the polyunsaturated share splits further into omega-6 and omega-3. No single oil gets that balance right on its own. That is why ICMR-NIN's dietary guidelines for Indians recommend using a combination of oils rather than one, for instance pairing an oil that brings some omega-3, such as mustard or soybean, with groundnut, rice bran or sesame oil. In practice, that can mean one oil for tadka and another for sabzi, or alternating tins from one month to the next.
What do saturated and unsaturated fats mean for your heart?
Replacing saturated fat with unsaturated fat lowers LDL cholesterol and, over time, the risk of heart disease. A Cochrane review of long-term trials found that reducing saturated fat lowered the risk of cardiovascular events. Monounsaturated fat, mainly oleic acid, dominates groundnut and olive oil and makes up a large share of rice bran oil. Omega-6 linoleic acid dominates sunflower, safflower and soybean. The plant omega-3, alpha-linolenic acid (ALA), appears in useful amounts in mustard and soybean oil. Saturated fat is highest in coconut oil, palm oil and ghee. For people with raised cholesterol, the cholesterol diet chart shows how oil fits a whole day; anyone who has had a heart attack or takes cholesterol medicine should let their doctor shape that plan.
Is mustard oil good for health?
For most Indians using it in ordinary cooking, yes. Mustard oil is low in saturated fat, around 60 per cent monounsaturated and, unusually for a cooking oil, carries a meaningful share of omega-3 ALA, commonly around 10 per cent. Its pungency comes from compounds released when the seed is crushed, which is why kachi ghani oil is traditionally heated until it just begins to smoke before whole spices go in. The caveat is erucic acid, a monounsaturated fat that makes up a large share of the fat in traditional Indian mustard varieties. High doses caused fatty changes in the heart muscle of rats, though that harm has not been shown in people.
Why is mustard oil not sold as cooking oil in the US?
Because of the erucic acid. The US Food and Drug Administration does not permit expressed mustard oil to be sold there as a cooking oil, which is why bottles in American shops carry a label for external use. The rule rests largely on the animal studies rather than on evidence of harm in people, and it sits against centuries of everyday use in Bengal, Odisha, Punjab and much of north and east India. Indian plant breeders have developed low-erucic mustard varieties partly for this reason. The more practical worry at home is adulteration: the 1998 epidemic dropsy outbreak in Delhi was traced to mustard oil contaminated with argemone oil, so buy sealed packs from reliable sources.
Is groundnut oil a good choice for Indian cooking?
Yes, and it is one of the most versatile. Groundnut oil is roughly half monounsaturated fat, about a third omega-6 and around a fifth saturated, a profile that stands up well to heat. Refined groundnut oil suits deep frying, while filtered and cold-pressed versions, common in Gujarat, Maharashtra and Tamil Nadu, bring a nutty flavour to everyday cooking. It brings almost no omega-3, so it pairs well with mustard or soybean oil over the week. People with a peanut allergy should ask their allergist before using it, because less refined oils can retain traces of the protein.
Is rice bran oil healthy?
It is a reasonable, balanced choice. Rice bran oil runs at roughly 40 per cent monounsaturated fat, a third polyunsaturated and a fifth or so saturated, and it contains gamma-oryzanol, a compound that some small trials have linked with modest falls in LDL cholesterol. It has a high smoke point and a neutral taste, which makes it popular for frying. Much of what is sold is blended with another oil, and blended oils in India must name their component oils on the label. Sesame oil, the gingelly or til oil of Tamil Nadu and Andhra kitchens, has a similarly balanced profile along with antioxidant lignans of its own.
Are sunflower, safflower and soybean oil healthy?
Yes, as part of a mix, less so as the only oil. Ordinary sunflower and safflower oils are dominated by omega-6 linoleic acid, often 60 to 75 per cent of the fat, with almost no omega-3. Omega-6 lowers LDL cholesterol when it replaces saturated fat, so these oils are not harmful, but a kitchen that uses nothing else ends up very short of omega-3. High-oleic versions, bred to be mostly monounsaturated, say so on the pack. Soybean oil is also mostly polyunsaturated but carries some omega-3, around 7 per cent. The companion page on omega-3 foods and capsules covers the other sources.
| Oil | Dominant fat | Omega-3 ALA |
|---|---|---|
| Mustard | monounsaturated, around 60 per cent | yes, commonly around 10 per cent |
| Groundnut | monounsaturated, about half | almost none |
| Rice bran | monounsaturated, roughly 40 per cent | almost none |
| Sunflower and safflower | omega-6, often 60 to 75 per cent | almost none |
| Soybean | mostly polyunsaturated | yes, around 7 per cent |
| Coconut and palm | saturated | none |
Profiles move with seed variety and processing, so read these as approximate.
Can you cook Indian food in olive oil?
Yes, at moderate heat. Extra virgin olive oil is about three-quarters monounsaturated fat and holds up better than its smoke point of roughly 190 to 210 degrees Celsius suggests, because its natural antioxidants slow breakdown. That is plenty for softening onions, cooking a sabzi or making a dressing. It is an expensive choice for deep frying, and its flavour does not suit every dish. The pomace olive oil marketed for Indian cooking is extracted from the leftover pulp with solvents and is a different, lesser product. Olive oil's reputation comes from whole Mediterranean diets, not from the bottle alone.
Is coconut oil healthy for cooking?
Coconut oil is more than 80 per cent saturated fat, mostly lauric acid, and it raises LDL cholesterol more than unsaturated oils do. It is the traditional oil of Kerala and coastal Karnataka, and there is no need to banish it from those cuisines, but it is not the heart-protective superfood some marketing claims. Its supposed medium-chain benefits are overstated, because most of its fat does not behave like the MCT oil used in studies. Palm oil, about half saturated, is less visible at home but dominates commercial frying, namkeen and biscuits. Keep both occasional rather than daily.
Why should you avoid vanaspati?
Because partial hydrogenation, the process that turns liquid vegetable oil into a solid fat like vanaspati, creates trans fats, the most harmful fat for the heart. Trans fats raise LDL cholesterol and lower HDL at the same time. FSSAI has capped trans fat at 2 per cent of total fat in oils and fats since 2022, which has shrunk the problem, but partially hydrogenated fats and bakery shortenings still turn up in sweet shops, bakeries and street frying. On a label, the words "hydrogenated" or "partially hydrogenated" are the signal. At home, there is no reason to keep vanaspati at all.
Does the smoke point of a cooking oil matter?
Yes, in practical terms. When oil starts to smoke it is breaking down, forming aldehydes and other irritant compounds and turning bitter. Refined oils such as groundnut, rice bran, sunflower and soybean generally smoke well above 200 degrees Celsius, while cold-pressed and unrefined oils smoke lower. Deep frying happens at about 170 to 190 degrees, so any refined oil copes, and a tadka is brief enough for almost any oil. The working rule is to heat oil until it shimmers rather than smokes, and to lower the flame if it does. Mustard oil's first wisp of smoke is the one traditional exception.
Is it safe to reuse cooking oil?
Only sparingly. Each round of heating breaks oil down into total polar compounds (TPC), some of them harmful, and FSSAI requires food businesses to discard frying oil once TPC exceeds 25 per cent. Its advice is to avoid reusing oil and, where it is reused, to stop after about three times. At home, strain leftover frying oil, keep it covered and use it within a day or two for ordinary cooking rather than another deep fry. Oil that has darkened, thickened, foams or smokes early should go. An air fryer sidesteps much of this by using very little oil in the first place.
Frying oil, from the first heat to the bin
Reheating is what turns a reasonable oil into a poor one, and it is the part of the choice a household actually controls.
Heat it until it shimmers
Smoke means the oil is breaking down and turning bitter. Lower the flame if it starts. Mustard oil, heated to its first wisp for a tadka, is the traditional exception.
Strain it once it cools
Get the crumbs out and keep it covered, because bits of food left in the oil speed up the breakdown.
Use it up in ordinary cooking
Within a day or two, for a sabzi or a tadka rather than another deep fry. FSSAI advises against reusing frying oil at all, and stopping after about three rounds where it is reused.
Throw it out on sight
Oil that has darkened, thickened, foams or smokes early has gone too far to rescue.
How much oil should one person use in a day?
Less than most households pour. ICMR-NIN's guidance puts visible fats and oils, ghee included, at roughly 20 to 30 g a day for most adults, somewhat more for heavy manual work. That is about four to six teaspoons. A simple household check: at those amounts, a family of four adults goes through roughly 2.5 to 4 litres of oil and ghee a month. If yours uses much more, the total matters more than the brand. Ghee counts in that allowance too, and whether it earns its place is weighed in is ghee good for you.
Heart health beyond the oil tin
Choosing oils is one small part of cardiovascular nutrition, which also takes in sodium, blood lipids, eating patterns and the slow work of changing habits. NNWA's Cardiovascular (CVD) Nutrition course covers cardiovascular physiology and risk, blood pressure and sodium, cholesterol and blood lipids, heart-protective eating patterns, nutrition in cardiac conditions, and counselling and behaviour change. Set at intermediate level over five weeks, it costs 9,999 rupees, cut from 14,999, with EMI of 1,667 rupees a month, and leads to NNWA certificates.
The honest summary
There is no single best cooking oil for India. Combine or rotate two or three, for example mustard or soybean with groundnut, rice bran or sesame, so you get monounsaturated fat and some omega-3 without leaning on one profile. Keep coconut and palm oil occasional, avoid vanaspati, heat oil until it shimmers rather than smokes, and do not keep reheating the frying oil. Above all, watch the amount: four to six teaspoons of visible fat a day is the target most kitchens miss.