Can Flaxseed meal cause more harm than good?

fiber can upset the gi tract, although usally you work into it some. For some IBSers it helps and for others not so much. It can take up to eight weeks for some for their body to adjust to fiber, although most don't take that long.

You can also have a flare while trying something new and might associate it with the new thing.

I don't think that any one food or supplement is always good or always bad. Like Shawn says, just changing something can upset your equilibrium. It might help to step up slowly and give yourself time to adjust. If the problems persist you might consider another source of fiber, perhaps flax meal is just not for you. My favorite fiber sources that don't give me grief are old fashioned oatmeal or honeyed dates.