http://www.almotamar.net صحيفة إلكترونية يومية تصدر عن حزب المؤتمر الشعبي العام (اليمن) http://www.almotamar.net/709.htm 2006-09-04 Trans fats are unsaturated fatty acids with at least one double bond in the trans configuration. While small amounts of trans fats are naturally present in meats and dairy products from cows, sheep, and other ruminants, the great majority of trans fats in our diet are industrially-produced, contained in foods made with partially hydrogenated vegetable oils. Partial hydrogenation, which converts vegetable oils into semi-solid fats for use in margarines, commercial cooking, and manufacturing processes, converts approximately 30% of the natural fats to trans fats. In the US, consumption of trans fats averages between 2-4% of total energy, with major sources being deep fried fast foods, bakery products (cakes, cookies, muffins, pies, etc.), packaged snack foods, margarines, and breads.