CLA or conjugated linoleic acid is a health supplement. A lot of research has been done looking for the effect of CLA in combating Cancer, Cardiovascular diseases, High blood pressure, High Cholesterol and triglycerides, Osteoporosis, Insulin resistance etc. Some researchers are also looking into the weight loss properties of CLA. In the natural world you can get the max amount of CLA from Kangaroo meat, mutton and beef (grass fed ones not grain fed) and from eggs.
Now all we need here in India is a Kangaroo meat importer..lol.