Assertion: margarine's fat | /r/HasProperty | formed
Facets:
Source sentences:
text: Trans fats occur naturally in small amounts in some foods, including meat and dairy products, but most trans fats in the American diet are formed when vegetable oils are chemically changed to give them a longer shelf life.
text: The long answer: Trans fats are formed when liquid vegetable oils are hardened or hydrogenated (treated with hydrogen) to turn them into semi-solid fats.