i too had wondered that about the acacia...i used to be taking, maybe 3 tablespoons??? and i noticed i felt too inflated to wanna move. i went down to 2 coffee-spoons worth and noticed way less gas/bloat. i really think [for Cs] acacia works the best in eliminating the side-problems. it doesnt really make me have bowel movements as it makes me feel more comfortable when i dont have them. i do agree that i feel that way though when i have too much fiber and not enough water. just something you learn as you go!