yes...you need both. They both absorb water..but the insoluble is what takes up space to prevent the stool from sticking together...like vermiculite in soil or the stones in making cement.
You'll have to find the balance, and not everyone can take all kinds.
Most of the supplements have artificial sweeteners that can cause symptoms...pills or the unflavoured that you add to flavoured drinks would be best.
Inulin and methylcellulose are considered least problematic with allergies..but again, it's trial and error.
You'll have to find your way with the fibre supplements.
Food is still your best bet, however....eating different foods and well balanced meals keeps things moving.
*Heather*Status:mini flare June 23* 6asacol daily+ Salofalk (tapered every 3rd night)
~diagnosed January 1989 UC (proctosigmoiditis)
~5ASA: Asacol + Salofalk enemas (increase for flares tapered to maintenance)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 2 (Natural Factors Protec) + 1 (Primadophilus Reuteri) at bedtime
~Natural Factors Multi Digestive Enzymes with supper
~Ranitidine,Pariet (reflux) Effexor XR 75mg; Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!