Which of the following is NOT a mechanism contributing to malnutrition in Crohn's disease?

• A. Malabsorption from diseased small bowel mucosa
• B. Increased nutrient requirements from active inflammation
• C. Increased intestinal absorption of nutrients
• D. Reduced oral intake due to abdominal discomfort and diarrhea

Answer: (C)

Crohn's disease leads to malnutrition mainly through three processes: malabsorption from damaged small-bowel mucosa, increased nutrient needs driven by ongoing inflammation, and reduced oral intake due to abdominal pain, diarrhea, or nausea. The option describing increased intestinal absorption of nutrients would help, not hinder, nutrition, so it does not contribute to malnutrition. The other factors describe real ways the disease promotes nutrient deficits.