Which of the following foods is a good source of unsaturated fats?

Olive oil is recognized as a good source of unsaturated fats, particularly monounsaturated fats, which can have beneficial effects on heart health. Monounsaturated fats help lower bad cholesterol levels (LDL) while increasing good cholesterol levels (HDL). This balance contributes to a reduced risk of heart disease and certain types of cancer.

In contrast, options like butter, coconut oil, and beef tallow are primarily composed of saturated fats. These types of fats are associated with raising LDL cholesterol levels, which can increase the risk of cardiovascular disease if consumed in excess. Therefore, olive oil is the most beneficial choice when considering sources of unsaturated fats for a healthy diet.