For good health, replace other cooking oils with mustard oil According to a study, the very common sarson ka tel could be the best weapon against inflammatory diseases, such as Covid-19. From keeping your heart healthy to fostering weight loss, know how it can be your key to long life. New Delhi: If you want to achieve good health amid the pandemic, choosing the right oil should be the foremost step as Covid-19 is an inflammatory disease and we should, therefore, focus more on anti-inflammatory diets and the right cooking oil, top health experts have said. Eminent physician and cardiologist and Past President of the Indian Medical Association K.K. Aggarwal is favourably inclined towards cold-pressed mustard oil not only because it is rich in Monounsaturated Fatty Acids (MUFA), it also contains large amounts of Omega-3 fatty acids and alpha-linolenic acid which are proven to decrease oxidative stress and inflammation.