Trans fats (PDF) are formed when liquid oils are made into semi-solid fats like shortening and hard margarine. Scientific evidence has shown that dietary trans fats can increase your risk of developing heart disease. You can reduce this risk by choosing healthier foods that contain little or no trans fat.
There are specific recommendations in Canada's Food Guide to limit trans fat and include a small amount of unsaturated fat each day. To avoid trans fat, limit foods that contain hydrogenated or partially hydrogenated oils, palm kernel oil, coconut oil, shortening, butter or lard. Breaded fish sticks and fillets, chicken balls and nuggets, meat pies, snack foods and baked goods commonly contain these ingredients.