But research on this is only in its early stages, and studies in humans are scarce. One good study by scientists at the USDA and the University of California, Davis, found that CLA capsules did not affect body fat or weight. There's other news about CLA from a few early studies. Its anti-cancer effects are under investigation. But this is all largely theoretical and comes mostly from animal studies.
Nobody knows whether such high levels are safe.
And no one understands the long-term benefits and risks. Maybe in a few years, research will tell us more. CLA supplements may prove to be a useful for dieters or for other purposes. For now, it's too early to say, and we suggest that you wait and see.