An outpatient consumes 1,800 kcal/day and follows a fat-restricted plan providing 10% of kcal as fat. Calculate the grams of fat per day and discuss whether this amount is likely sufficient to support absorption of fat-soluble vitamins in most adults.

• A. 40 g of fat per day; this amount guarantees perfect absorption of fat-soluble vitamins in all individuals regardless of digestive health.
• B. 60 g of fat per day; this is the minimum amount required for any absorption of vitamins A, D, E, and K in healthy adults.
• C. 20 g of fat per day; this is relatively low and may risk insufficient absorption of fat-soluble vitamins in some people.
• D. 10 g of fat per day; such a small amount is sufficient because bile salts alone can absorb vitamins without dietary fat.

Answer: (C)