What is trans fat and how is it linked to heart disease?
Trans fat is formed when liquid oils are made more solid through a process called partial hydrogenation. Essentially, hydrogenation is the process of making unsaturated fat more saturated. The process is used to increase the shelf life and flavor stability of foods containing these fats. Fully hydrogenated fats do not contain trans fat but are high in saturated fats. According to the FDA and leading health authorities, saturated and trans fats raise LDL (or “bad”) cholesterol and lower HDL (or “good”) cholesterol levels in the blood, thereby increasing the risk of heart disease. Dietary cholesterol also contributes to heart disease. Unsaturated fats, such as monounsaturated and polyunsaturated, do not raise LDL cholesterol and are beneficial when consumed in moderation since they maintain healthy cholesterol levels when substituted for saturated fats. Therefore, FDA states “It is advisable to choose foods low in saturated fat, trans fat, and cholesterol as part of a healthful diet.” Wh