Which dietary change can help reduce cholesterol levels?

Increasing intake of soluble fiber is recognized as an effective dietary change for reducing cholesterol levels. Soluble fiber helps lower low-density lipoprotein (LDL) cholesterol, often termed "bad" cholesterol, by binding to cholesterol in the digestive system. This binding process helps prevent cholesterol from being absorbed into the bloodstream. Sources of soluble fiber include oats, barley, beans, lentils, fruits (such as apples and citrus fruits), and vegetables. Incorporating these foods into a diet can lead to significant improvements in blood cholesterol profiles, thereby reducing the risk of cardiovascular disease.

In contrast, reducing carbohydrate intake may not directly target cholesterol levels and can affect overall nutrition if not balanced with appropriate nutrients. Limiting protein consumption does not inherently address cholesterol levels, and protein sources vary widely in their effects on cholesterol; for instance, lean meats might have a different impact compared to fatty meats. Adding trans fats to the diet contradicts established guidelines for heart health, as trans fats are known to raise LDL cholesterol and lower high-density lipoprotein (HDL) cholesterol, which is detrimental to cardiovascular health. Therefore, increasing soluble fiber consumption is a well-supported strategy to help achieve better cholesterol management.