Mustard oil has anti-bacterial properties as it is rich in glucosinolate which does not allow microbial presence. Thus, it prevents unwanted growth of bacteria, fungi and other deadly microbes.
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Mustard oil is considered healthy as it is devoid of trans-fats, is low in saturated fats and has a high content of mono-unsaturated fats and polyunsaturated fatty acids such as omega-3.