Welcome to HealingWell!
Do you have burning bile D? Most people prescribed Welchol have a bile problem associated with not having a gall bladder. Is this the case for you?
If not, as Indigo mentioned, calcium would be a great supplement to add to your diet. The calcium absorbs excess water and helps control D. Here
is a great post about
calcium and the specifics.
Do you take any probiotics or eat yogurt? The good bacteria should also help your D.