What is the fluid provision recommendation when using a fiber-containing enteral regimen?

• A. 1 mL per kcal
• B. 0.5 mL per kcal
• C. 2 mL per kcal
• D. No specific requirement

Answer: (A)

When fiber is added to an enteral regimen, water is needed to hydrate the fiber so it can swell properly and move through the GI tract. That hydration requirement is addressed by a practical target: provide about 1 mL of total fluid per kcal of estimated energy needs each day. This aligns the amount of hydration with the amount of nutritional calories being delivered, helping to prevent constipation and tube-related intolerance that can occur when fiber is present. For example, a patient needing 1800 kcal/day would have a target around 1800 mL of total daily fluid, adjusted for losses and clinical status. A smaller value (half a milliliter per kcal) undercuts hydration and can worsen GI tolerance, while a larger value (two mL per kcal) may risk fluid overload in some patients. A policy of no specific fluid target would neglect the fiber-associated hydration needs.