Ursodiol facilitates absorption of which nutrient?

• A. Carbohydrate
• B. Protein
• C. Fat
• D. Vitamin K

Answer: (C)

Ursodiol works by acting as a bile acid to emulsify fats in the intestine. This emulsification creates micelles that solubilize lipids, allowing pancreatic lipase to digest them and for the resulting fatty acids and monoglycerides to be absorbed by intestinal cells. Because fat digestion and absorption rely on bile acids like ursodiol, the nutrient whose absorption is directly facilitated is fat. Carbohydrates and proteins don’t require bile for digestion, and while fat absorption helps with absorption of fat-soluble vitamins (like vitamin K), the direct nutrient type being promoted here is fat.