A preserved meat contains nitrite at 4 mg per 100 g serving. If a 70 kg consumer eats a 150 g serving in one day, and the ADI (after safety factor) for nitrite is 0.3 mg/kg/day, calculate the consumer's mg/kg/day exposure and determine whether it exceeds the ADI. Show your analysis steps.

• A. Exposure ≈ 0.857 mg/kg/day (≈285.7% of ADI); exceeds the ADI and is unsafe
• B. Exposure ≈ 3.43 mg/kg/day (>1000% of ADI); clearly exceeds safety margins and requires immediate recall
• C. Exposure ≈ 0.006 mg/kg/day (≈2% of ADI); far below the ADI because the serving size is negligible
• D. Exposure ≈ 0.0857 mg/kg/day (≈28.6% of ADI); does not exceed the ADI

Answer: (D)