Vegetable oils in the ingredient list may contain trans fatty acids.

The vegetable oils in the ingredient list may contain trans fatty acids, but not necessarily. Trans fatty acids mainly come from two situations: first, natural sources. For example, herbivorous animals produce natural trans fatty acids, so there are very small amounts of natural trans fatty acids in beef, mutton, milk and dairy products; second, they are from natural sources. It is an artificial source that is added to vegetable oils in the food industry to improve their properties (including melting point, taste, shelf life, etc.). During this hydrogenation process, trans fatty acids are produced. In addition, trans fatty acids are also produced during cooking processes such as frying food. Therefore, if the vegetable oil in the ingredient list has been heated at high temperatures or hydrogenated, it may contain trans fatty acids.