Anecdotal evidence shows that 6+ grams are necessary for noticable effects, yet some claim that LBM gains are inhibited also. Rob Thoburn posted on another board that evidence shows that it may be more effective on a low fat diet. Studies also show that it is synergistic with a lipoxygenase inhibitor, such as indomethacin, NDGA, boswellic acids, etc.
Another conjugated fat, CNA is stronger than CLA in lipid reducing effects.