I've taken it for over a year along with boswellia and cat's claw. Besides being helpful for Crohn's it is one of the best supplements you can take for health in general from what I have seen.
I have seen discussions about whether or not large doses of turmeric or taking it for a long period of time can be hepaprotective and I've seen discussions where people say it is hepatoxic.
Diagnosed 10.2009 w/ proctosigmoiditis, probably pANCA+ Crohn's colitis
Symptoms since 10.2007
Pentasa, four grams/day
Rowasa enema, 3 grams every other night
VSL#3 DS four packet/day
Turmeric, digestive enzymes, boswellia, propolis, cat's claw, l-glutamine, fish oil, vitamin D, kefir, blueberries
Liver-Milk Thistle; Heart-Hawthorn, sometimes