What is a key characteristic of trans fats?

Trans fats are known for their ability to raise low-density lipoprotein (LDL) cholesterol levels in the body. Elevated LDL cholesterol is a major risk factor for cardiovascular diseases, including heart attacks and strokes. This increase in LDL occurs because trans fats can alter lipid metabolism and disrupt the balance between cholesterol levels, leading to a buildup of fatty deposits in arteries.

Trans fats are primarily found in partially hydrogenated oils, which are commonly used in processed foods to enhance texture and shelf life. Unlike essential fatty acids, which are necessary for various bodily functions and must be obtained through diet, trans fats do not serve any nutritional purpose and can be detrimental to health. Additionally, trans fats can lower high-density lipoprotein (HDL) cholesterol, which is considered the "good" cholesterol. However, the key aspect that makes them particularly harmful is their role in raising LDL cholesterol levels.