What fiber supplement do you take?

What type of fiber supplement do you use? With my colitis I don't have D. I only get constipated. By constipated I mean that I might have a BM every other day or when I do have one its like rabbit droppings. My GI doc mentioned taking miralax but I hesitate taking something like that every day. He did say I could try a fiber supplement but when I look at them in the store, most contain things like sucralose, dextrose, etc..I worry that will make my proctitis worse. I generally try to avoid anything with weird chemicals or sugars.

I should mention that I don't want a fiber drink. I'd rather have something I can chew. I don't swallow pills.

I prefer psyllium husk too but my GI is not very happy with it. She fears it could trouble healing mucosal linings but when I am out of flare I prefer psyllium husk powder and eat loads of raw flaxseeds (with plenty of water).

I grind two tablespoons of flaxseed and mix it with my yogurt every morning. I have an Aunt that just chews the seeds with very positive results although most of my reading suggests that they be ground for best results. Flaxseed also has several other positive characteristics that make it a worthwhile diet addition (see www.umm.edu/altmed/articles/flaxseed-000244.htm).