Honestly I'd be more concerned if you are even absorbing the curcumin. Look into this:
Granted, there are a lot more questions that need to be answered in how this miniperspective came to the conclusion of "The likely false activity of curcumin in vitro and in vivo has resulted in >120 clinical trials of curcuminoids against several diseases. No double-blinded, placebo controlled clinical trial of curcumin has been successful." - still an interesting perspective.