Question

For prevention of coronary artery disease, what is the recommended dietary cholesterol intake limit per day?

• A. 100 mg 1000 kcal
• B. 200 mg 1000 kcal
• C. 400 mg 1000 kcal
• D. 500 mg 1000 kcal

Hint:

For CAD prevention, remember dietary cholesterol restriction along with reduced saturated fat intake.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The question asks for the standard dietary guidelines regarding cholesterol intake for individuals aiming to prevent Coronary Artery Disease (CAD).
Step 2: Detailed Explanation:

Historical Context of Guidelines: For decades, the National Cholesterol Education Program (NCEP) Adult Treatment Panel (ATP) and the American Heart Association (AHA) provided specific numeric limits for dietary cholesterol.

Absolute and Relative Limits:

For a healthy population without cardiovascular risk, the limit was traditionally set at less than 300 mg per day.

For patients with established CAD or high risk (e.g., Diabetes), the stricter limit was set at less than 200 mg per day.


Caloric Normalization: In medical exams and nutrition studies, these guidelines are often normalized to caloric intake to ensure nutritional balance across different body sizes. The established limit for CAD prevention is 200 mg per 1000 kcal.

Current Perspectives: While modern guidelines (AHA/ACC) focus more on restricting Saturated Fat and Trans Fat because they have a larger impact on LDL-C levels, competitive exams still frequently test these classic established numeric limits.

Step 3: Final Answer:
The dietary cholesterol limit for coronary artery disease prevention is 200 mg / 1000 kcal.