Abstract: Conjugated linoleic acid is a good fat which is naturally found in many foods like milk and meat of the ruminants particularly cows, sheep and goats. It is a potent cancer fighter along with several other positive health benefits. It can be transformed from lenoleic acid by the rumen bacteria. It is simply an excretory metabolites or metabolic intermediates of rumen bacteria and normally produced in ruminants as for symbiotic purposes thus it promotes health and longevity of the animals. CLA is also capable to prevent obesity, atherosclerosis and diabetes mellitus etc. The only need is to exploit the possibilities for its beneficial effects and exploration of its natural sources as a food. Among all organic milk is a richest food sources and may be the good alternative in this concerned. However, its detection, monitoring and quality control are the prime considerations.