How can consumers know if a product contains trans fat if it’s not identified on the nutrition label? 1.)the best option is to contact your physician and ask the physician to give you the names of foods that contain trans fats and therefore put a person at risk for heart disease. 2.)there isn’t a definite way to tell by the ingredient label; however, you can memorize the product names that contain trans fats. 3.)if the list contains high levels of sugar, it automatically means it contains trans fats. 4.) if the ingredient list includes the words “shortening,” “partially hydrogenated vegetable oil” or “hydrogenated vegetable oil,” the food contains trans fat.