Saturate
The chemistry of fat is that of a carbon chain, up to 24, with Hydrogen attached. Saturated fats mean that all the Carbon elements are attached to each other with a single bond and the element is, "saturated" with Hydrogen. This is different than, mono, or poly unsaturated fats in which, in one location (mono) there is a carbon to carbon double bond and a lack of hydrogen, or multiple areas, (poly) where this same thing occurs. Click Here for a whole bunch of info. The difference in each of these chemical structures isn't the elements involved, but the amount and strength of bonds that are involved that makes the difference. Carbon, Hydrogen, Nitrogen, in their elemental forms are the basis for all organic material and are not poisonous. However, in the right concentration or combination, kill a human with ease. The carbon to carbon bond, when the valence electrons combine with the nearest carbon in a chain of them rather than a hydrogen, does a completely different t...