Trans-Fatty Acids (Trans fat)
Cis and Trans configurations are terms used in organic chemistry to depict the 3-D arrangement of carbon atoms across a double bond. Trans-fatty acids (TFAs) are unsaturated fatty acids containing at least one double bond in the trans configuration.
Cis and trans isomers often have different physical properties. Generally, trans isomers are more stable than cis isomers
In nature, most unsaturated fatty acids occur as cis – configuration and NOT as trans – configuration.