I find if yourself getting backed up, eat some beans or as a last resort take Colace. Those Citurcell pills help too.

I heard a new jingle on the radio for some brand of baked beans. It was a bunch of little kids singing (if I remember right):

Beans, beans the magical fruit
The more you eat, the more you toot
The more you toot, the better you feel
So eat your beans at every meal

Beans have a lot of fiber.