According to a study done by the American Journal of Clinical Nutrition, including Mustard Oil in your regular diet could prove to be beneficial to your heart health. Being a rich source of MUFA, it lowers bad cholesterol in the body, thus keeping a check on blood fat levels and helping in circulation. The results also stated that the use of mustard oil, which is rich in alpha-linolenic acid, was associated with a lower IHD risk (Ischemic Heart Disease) than with the use of sunflower oil.