Dietary modification to prevent cardiovascular disease is –
**Core Concept**
The question tests the understanding of lifestyle modifications in the prevention of cardiovascular disease (CVD). Dietary modification is a crucial aspect of primary prevention of CVD, which is a leading cause of morbidity and mortality worldwide. The underlying principle is to adopt a heart-healthy diet that reduces the risk of atherosclerosis and subsequent cardiovascular events.
**Why the Correct Answer is Right**
A diet rich in fruits, vegetables, whole grains, and low-fat dairy products, and low in saturated and trans fats, cholesterol, and sodium is recommended to prevent CVD. This dietary pattern, often referred to as the Mediterranean diet, has been consistently associated with a reduced risk of cardiovascular events and mortality. The key components of this diet include:
* High intake of monounsaturated fats (MUFAs) and polyunsaturated fats (PUFAs), which help lower LDL cholesterol and triglycerides.
* High intake of fiber, vitamins, and minerals, which help lower blood pressure and improve overall cardiovascular health.
* Low intake of saturated and trans fats, which increase LDL cholesterol and triglycerides.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a diet high in refined carbohydrates, added sugars, and saturated fats can increase the risk of CVD by promoting insulin resistance, inflammation, and atherosclerosis.
**Option B:** This option is incorrect because a diet low in omega-3 fatty acids, antioxidants, and fiber can increase the risk of CVD by promoting inflammation, oxidative stress, and endothelial dysfunction.
**Option C:** This option is incorrect because a diet high in sodium can increase blood pressure and cardiovascular risk, particularly in individuals with pre-existing hypertension.
**Clinical Pearl / High-Yield Fact**
A simple and effective way to remember the key components of a heart-healthy diet is to use the "Mediterranean Diet Pyramid":
* Base: Whole grains, fruits, and vegetables
* Middle: Legumes, nuts, and seeds
* Top: Olive oil, fish, and poultry
* Limit: Red meat, sweets, and refined carbohydrates
**Correct Answer:** D.