**Core Concept**
The prevention of coronary artery disease (CAD) involves a multifaceted approach, focusing on lifestyle modifications and dietary changes to reduce the risk of atherosclerosis and myocardial infarction. Key recommendations include dietary adjustments to manage cholesterol levels, sodium intake, and saturated fat consumption.

**Why the Correct Answer is Right**
The correct answer, **D. Fat intake <10% of total energy**, is incorrect because the American Heart Association recommends limiting saturated and trans fats to no more than 5-6% of total daily calories, not 10%. This recommendation aims to reduce the risk of CAD by minimizing the intake of dietary cholesterol and saturated fats, which can raise low-density lipoprotein (LDL) cholesterol levels and contribute to plaque formation in the arteries.

**Why Each Wrong Option is Incorrect**
**Option A:** Dietary cholesterol < 100/mg/1000kcal/day is actually a recommended goal, as excessive dietary cholesterol can raise LDL cholesterol levels and increase the risk of CAD.

**Option B:** Salt intake <5gm is also a recommended intervention, as excessive sodium consumption can lead to hypertension, a major risk factor for CAD.

**Option C:** No alcohol is a recommended behavior, as excessive alcohol consumption can increase blood pressure, contribute to obesity, and raise the risk of CAD.

**Clinical Pearl / High-Yield Fact**
When counseling patients on reducing their risk of CAD, it's essential to emphasize the importance of a balanced diet, regular physical activity, and stress management. Patients should aim to consume a variety of whole, unprocessed foods, including fruits, vegetables, whole grains, lean proteins, and healthy fats.

**✓ Correct Answer: D. Fat intake<10% of total energy**