Mustard oil and heart health

An evidence-based summary Bottom line: Mustard oil is not all bad, neither is it a magic heart-protective oil. It has some real advantages: low saturated fat, high monounsaturated fat, and a meaningful amount of plant omega-3 called alpha-linolenic acid, or ALA. But traditional mustard oil can also be high in erucic acid, which is the reason it remains controversial internationally. The good Mustard oil has a favorable fat profile compared with ghee, butter, coconut oil, and palm oil. It is relatively low in saturated fat and contains more unsaturated fats, including MUFA and ALA omega-3. That matters because replacing saturated fat with unsaturated fats generally improves LDL-related heart risk. There is also Indian observational evidence suggesting benefit. A major case-control study in India found that people using mustard oil for cooking had a lower risk of ischemic heart disease compared with sunflower oil users; the reported relative risk was about 0.49 for cooking use. But this was observational, so it shows association, not proof. A randomized Indian trial in patients with suspected acute myocardial infarction reported that mustard oil and fish oil groups had fewer cardiac events, possibly related to omega-3 fatty acids and reduced oxidative stress. This is interesting, but it should not be treated as definitive modern evidence that mustard oil prevents heart attacks. The bad The controversy is erucic acid. Traditional Indian mustard oil can contain high erucic acid, and animal studies link high erucic acid exposure to myocardial lipidosis, a fat accumulation in heart muscle. EFSA notes this effect in animals and established a tolerable daily intake; it also says the effect appears temporary and reversible in animal models. A 2022 review summarized the controversy well: limited evidence shows high-erucic-acid mustard oil causes cardiac lipidosis in rats, but the human cardiovascular effects remain unclear; the authors called for better prospective studies and randomized trials. The U.S. FDA does not allow expressed mustard oil to be sold as edible cooking oil because of erucic acid concerns, which is why many bottles in the U.S. are labeled “for external use only.” However, other jurisdictions allow limited erucic acid exposure, and India permits mustard oil under its own food standards. Everything in between Mustard oil’s sharp flavor comes partly from compounds such as allyl isothiocyanate, which may have antimicrobial and biologic effects. But many “anti-cancer,” “detox,” or “miracle heart oil” claims go far beyond human evidence. Also remember: all oils are calorie-dense. One tablespoon of oil is roughly 120 calories, whether it is mustard, olive, avocado, sesame, or groundnut oil So the biggest problem in many Indian diets is not just which oil — it is how much oil, repeated frying, pakoras, pooris, namkeen, restaurant food, and ultra-processed snacks. PRACTICAL RECOMMENDATIONS REGARDING MUSTARD OIL If you DO use it (In the US it is not available for oral use, but Indian stores do make it available-typically labeled for external use) use mustard oil as one of several oils, not as your only oil and not in unlimited quantity. For Indian cooking, a reasonable approach is to rotate or combine with oils like canola or olive oil, depending on dish and cooking method. Avoid reusing oil for deep frying. Overall, most things mentioned in the article are true. That being said, for the vast majority of the population it remains an excellent test to assess blood sugar control over a 3 month period. Almost no test is perfect, and A1c is no exception