What started as a debate in New York about the use of trans fats has resulted in a number of fast-food chains and eateries catching on to the trend.
Trans fat oils add hydrogen so that food tastes better and its shelf life is extended. Consequently, the Food and Drug Administration says the ingredient is commonly used in fried and processed food items.
But, since the awareness about the country's widespread obesity has increased, particularly among children, the artery-clogging oil has come under attack. Just last week, Burger King was sued for its use of the controversial oil by a nutrition advocacy group.