Which of the following nutrients plays a crucial role in the maintenance of epithelial integrity and is often deficient in patients with Crohn's disease?

A Vitamin A ✓
B Vitamin D
C Vitamin E
D Zinc

Explanation

Vitamin A is essential for maintaining epithelial integrity, and its deficiency can lead to impaired barrier function, making it a critical nutrient for patients with Crohn's disease.

Source

Nutrition in Clinical Practice
Metabolic and Nutritional Disorders Gastrointestinal Disorders Nutritional Management Hard MEDICAL Confidence: medium