So how long do trans fats stay in the body?

Trans fats: Trans fats remainin your body as elevated trigylcerides, higher LDL and lower HDL cholesterol.

Trans fats: Great question! adding to dr. Novick's response, trans fats also get incorporated into the membrane structure of your cells. This can affect the receptors on those cells, making them less responsive to chemical messengers essential in the running of your body (including your brain). It's best to have a supply of healthy fats around that your body can use to make healthy cell membranes.