Conjugated Linoleic Acid is a general term for a mixture of conjugated dienoic isomers of linoleic acid (C18:2 n-6). Several positional isomers can be distinguished. However, the two predominant isomers are c9,trans 11 and trans 10,c12. CLA is present as a natural compound in meat and dairy products. Conjugated Linoleic Acid is a general term for a mixture of conjugated dienoic isomers of linoleic acid (C18:2 n-6). Several positional isomers can be distinguished. However, the two predominant isomers are c9,trans 11 and trans 10,c12. CLA is present as a natural compound in meat and dairy products.