0 Grams trans fat. Made with 100% pure sunflower oil. Same great taste! Great News! The 2005 Dietary Guidelines recommend that most of the fats you eat be mono and polyunsaturated fats. Sunflower oil is 90% mono and polyunsaturated fats and has 0 grams of trans fat. Like a ray of golden sunshine, Lay's brand potato chips have a special way of making everyone smile. From the anticipation of the crisp, savory taste to the simplicity of the ingredients - we start with only our best potatoes, 100% pure sunflower oil, and salt, then add our unique seasoning - you'll agree they're simply irresistible! And because our potato chips are cooked in pure sunflower oil, they have at least 50% less saturated fat than regular potato chips. That's another reason to smile!