It was in the mid-1960s that the world started slowly waking up to the perils of fats in general, and saturated fat in particular, believes Dr Rajan Sankar, Director, Nutrition, for Tata Trusts. In an interview to Outlook Poshan, Dr Sankar said transfats, which are essentially partially hydrogenated oils used extensively by the food industry, was embedded into the food system because the world had become increasingly dependent on markets for food, and the consumption of processed and canned foods went up exponentially.