Calculation question: An adult male has an AI for choline of 550 mg/day. He eats 2 large eggs (150 mg each), drinks 1 cup of milk (40 mg), and has 2 tablespoons of peanut butter (25 mg per tablespoon). Using these values, does his intake meet the AI? Show your step-by-step calculation and conclusion.

• A. Yes — total = 550 mg exactly once choline from cooked foods is converted by the liver to active forms.
• B. Yes — total = 390 mg which meets the 550 mg AI when endogenous synthesis is included for all adults.
• C. No — total = 600 mg which is 50 mg over the AI due to rounding up egg values in clinical practice.
• D. No — total = 390 mg; 160 mg short of the 550 mg AI.

Answer: (D)