Final answer:
Enteral fiber has a common effect of improving constipation by absorbing water and adding bulk to the feces.
Step-by-step explanation:
The common effect of enteral fiber on the intestinal tract is an improvement in constipation. Fiber, particularly soluble fiber, absorbs water and adds bulk to the feces, which promotes regular bowel movements and prevents constipation. Examples of soluble fiber include beta-glucan and psyllium.