The 4 Fats we eat: saturated fats, transfats, monounsaturated fats and polyunsaturated fats.
Fats can have different effects on the cholesterol levels in your body. The bad fats, saturated and trans fats, tend to be more solid at room temperature (like a stick of butter). Saturated fats and trans fats also raise bad cholesterol (LDL) levels in your blood.
Monounsaturated and polyunsaturated fats tend to be more liquid (like liquid vegetable oil). Monounsaturated fats and polyunsaturated fats can lower bad cholesterol levels and are beneficial when consumed in moderation.