People are still afraid of saturated fats when they should not be - these are the fats that our bodies know how to cope with. All these partially-hydrogenated fats and vegetable oils, particularly highly-refined ones like canola, soy, and cottonseed oils, are really unhealthy polyunsaturated fats - our bodies don't know how to deal with these "unnatural" fats and so they are stored as - yup - fat!
Butter, lard, tallow, coconut oil - all natural saturated fats that our bodies can burn for fuel. That's overly simplified but do the research on this.