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These studies suggest that a diet plan to lower cholesterol should include high-monounsaturated fatty acids, plant-based foods high in fiber and vegetable protein, polyunsaturated oils, fruits, vegetables, whole grains, low-fat dairy, omega-3 fatty acids, plant sterols, soy protein, viscous fibers, and nuts, while minimizing saturated fats, trans fats, and refined carbohydrates.
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High-monounsaturated fatty acid (MUFA) diets have been shown to effectively lower both total cholesterol and low-density lipoprotein (LDL) cholesterol levels. These diets, which include sources like olive oil, peanut oil, and peanut products, can reduce total cholesterol by 10% and LDL cholesterol by 14%. Unlike low-fat diets, high-MUFA diets do not increase triacylglycerol levels or decrease high-density lipoprotein (HDL) cholesterol, making them a preferable option for cardiovascular disease (CVD) risk reduction.
Plant-based diets, which are rich in vegetables, whole grains, soy, nuts, and other plant-based foods, have been shown to significantly lower LDL cholesterol levels. A study found that a plant-based diet reduced LDL cholesterol by 9.3% over four weeks, which is substantial enough to potentially reduce all-cause mortality if maintained long-term. The inclusion of foods high in viscous fiber, plant sterols, and vegetable proteins contributes to these cholesterol-lowering effects.
Key components of an effective plant-based diet include:
A dietary portfolio that combines multiple cholesterol-lowering foods can achieve significant reductions in LDL cholesterol. This approach includes foods like soy, viscous fiber, plant sterols, and nuts. Studies have shown that such a diet can reduce LDL cholesterol by approximately 30%, comparable to the effects of starting doses of statin drugs .
For practical implementation, individuals can incorporate the following into their diet:
The American Heart Association recommends a diet rich in vegetables, fruits, whole grains, and fish, while minimizing saturated fats, trans fats, and cholesterol. Specific guidelines include:
Adhering to a Mediterranean diet, which emphasizes fruits, vegetables, whole grains, and healthy fats like olive oil, is strongly recommended for lowering CVD risk and total mortality. This diet also includes fish or other sources of omega-3 fatty acids, which have been shown to lower triglycerides and prevent coronary plaque progression.
In summary, a diet plan to lower cholesterol should focus on high-MUFA foods, plant-based components, and a combination of cholesterol-lowering foods. Adhering to guidelines from reputable organizations like the American Heart Association and incorporating elements of the Mediterranean diet can further enhance the effectiveness of dietary interventions in reducing cholesterol levels and improving cardiovascular health.
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