Initially, the limits of erucic acid were introduced for rapeseed oil which has a much higher market share than mustard oil. Mustard oil is made by the pressing mustard plant seeds (via Healthline).Known for its pungent aroma and strong, spicy flavor, mustard oil often serves as an ingredient in curries and vegetable dishes in South Asia, where it holds a particularly special place (via Atlas Obscura).However, in the U.S., the Food and Drug Administration banned mustard oil because it contains erucic acid. While the average daily intake of mustard oil is low, prepared mustard is more commonly used in Germany. This monounsaturated fatty acid is present in several oils. However, the high content of undesirable erucic acid (>45%) in popular mustard… Rapeseed was not used as a cooking oil until the development of Canola Oil. Mustard oil may pose a serious risk because it contains high levels of erucic acid. Mustard oil is known to be a good cooking oil as it contains lowest amount of saturated fat amongst all edible oils in the market including soybean, canola and olive oil. In fact, to be called canola oil, it must contain an erucic acid level of 2% or less and meet internationally regulated standards. Therefore, we determined the erucic acid content in five mustard sauces and fifteen mustard … Mustard Seed Oil is often confused with Rapeseed Oil and Canola Oil (low erucic acid rapeseed oil). WHY LIFEGARD MUSTARD OIL? Those oils are from a related species, ( Brassica napus ) but are not the same oil.