What type of dietary fat does the ACC/AHA specifically advise against?

The American College of Cardiology (ACC) and the American Heart Association (AHA) specifically advise against the consumption of trans fats due to their harmful effects on cardiovascular health. Trans fats, often found in partially hydrogenated oils, can raise LDL cholesterol levels (often referred to as "bad" cholesterol) while lowering HDL cholesterol levels (the "good" cholesterol). This imbalance can significantly increase the risk of heart disease and stroke.

In contrast, mono-unsaturated fats and polyunsaturated fats are generally considered heart-healthy when consumed in moderation. These types of fats can help improve cholesterol levels and offer protective cardiovascular benefits. Saturated fats, while advised to be consumed in moderation, do not carry the same level of risk as trans fats. Therefore, the clear recommendation to avoid trans fats stems from their strong association with an increased risk of cardiovascular diseases.