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  1. Trans fat - Wikipedia

    en.wikipedia.org/wiki/Trans_fat

    5 days ago ยท Trans fat, also called trans-unsaturated fatty acids or trans fatty acids, is a type of unsaturated fat that occurs in small amounts in meat and milk fat. It became widely produced as an unintentional byproduct in the industrial processing of vegetable and fish oils in the early 20th century for use in margarine and later also in snack food, packaged baked goods, and for frying fast food.