Which type of fat is considered unhealthy and should be limited in a diet?

Saturated fats are considered unhealthy primarily because they can raise levels of LDL (low-density lipoprotein) cholesterol in the blood, which is often referred to as "bad" cholesterol. High levels of LDL cholesterol are associated with an increased risk of heart disease and stroke. Therefore, health guidelines generally recommend limiting the intake of saturated fats, particularly those found in animal products like fatty cuts of meat, full-fat dairy products, and certain oils.

In contrast, monounsaturated and polyunsaturated fats are deemed healthier options. Monounsaturated fats, found in foods like olive oil and avocados, may help reduce bad cholesterol levels and provide heart health benefits. Polyunsaturated fats, which include omega-3 fatty acids found in fish, flaxseeds, and walnuts, are essential for the body and can also reduce the risk of cardiovascular diseases.

By focusing on reducing saturated fats in the diet while incorporating healthier fats, individuals can better maintain heart health and reduce the likelihood of developing chronic health problems.