In chemistry an unsaturated compound is that organic molecule containing at least one carbon double bond.
Fat saturation is thought to determine its ability to block blood circulation within the body.
The carbon chains of acids that react with glycerol can be saturated or unsaturated. If they are saturated, there is no carbon-carbon double bond, and it is said to be "saturated" because the chain has all the hydrogen atoms it can accommodate. Acylglycerides with saturated chains are called fats. They are in solid state at room temperature, and are produced by animals.
On the contrary, if the chains are unsaturated (there is a carbon-carbon double bond) or more; this unsaturation causes a change in the rather important steric conformation due to the rigidity of the double bond that causes the molecules can not be in contact in the same way as if they were saturated. This lack of contact means that the same intermolecular forces can not be established, and because there is less attraction between them, they are in a liquid state at room temperature. These acylglycerides are called oils, and are only made by plants.
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