Which intervention reduces LDL cholesterol levels?

• A. Increased Salt Intake
• B. High Saturated Fat Intake
• C. Smoking
• D. Regular Physical Activity

Answer: (D)

Regular physical activity lowers LDL cholesterol by helping the body clear LDL from the bloodstream and by improving the overall lipid profile. When you exercise regularly, the liver’s receptors for LDL work more effectively, which speeds up the removal of LDL from blood. It also often leads to weight management and better insulin sensitivity, both of which can contribute to lower LDL levels. In addition, aerobic and resistance training tend to raise HDL (“good”) cholesterol, improving the balance of fats in your blood.

In contrast, options like increasing salt intake, consuming high amounts of saturated fat, or smoking don’t reduce LDL. Salt affects blood pressure more than lipid levels. Saturated fat tends to raise LDL, and smoking worsens lipid balance and cardiovascular risk in multiple ways, not by lowering LDL.