What you need to know about fat
There are three kinds of fats in the foods we eat - saturated, polyunsaturated and monounsaturated fatty acids. Most foods contain all three types of fat, but in varying amounts.
Only saturated fatty acids and dietary cholesterol raise blood cholesterol. A high level of cholesterol in the blood is a major risk factor for coronary heart disease, which causes heart attacks.
Fats and oils high in saturated fatty acids tend to become hard at room temperature. Butter, lard and tallow from animals, and coconut, palm and palm kernel oils from plants are common examples.