Which packaged foods have often contained trans fats?

Packaged foods have historically contained trans fats because manufacturers used them to extend shelf life and improve the texture of products. You can identify these fats by checking the ingredient list for "partially hydrogenated oil."12

Common packaged foods that have often contained trans fats include:

• Baked goods: Such as cookies, pie crusts, and doughnuts, which frequently use shortening.1
• Spreads: Specifically margarine.12
• Snack foods: Including crackers and potato chips.1
• Prepared doughs: Such as pizza dough.1

Additionally, trans fats are commonly found in commercially prepared deep-fried foods, such as french fries and fried chicken.12

It is important to note that while some trans fats occur naturally in dairy products and certain meats, these are not the same as the industrially produced trans fats found in processed foods, which are linked to increased risks of heart disease and type II diabetes. Because of these health risks, many health agencies and manufacturers have moved to limit or eliminate the use of artificial trans fats in food production.1