Which lifestyle change is most effective for improving HDL cholesterol levels?

Increased physical activity is the most effective lifestyle change for improving HDL cholesterol levels. Engaging in regular exercise can enhance overall cardiovascular health and is particularly beneficial in raising HDL, often referred to as "good" cholesterol. Exercise has been shown to promote the mobilization of cholesterol from peripheral tissues, facilitating its transport back to the liver for metabolism and elimination. Aerobic exercises, such as walking, running, cycling, and swimming, are particularly effective in this regard.

While smoking cessation is beneficial for overall cardiovascular health and can help in improving lipid profiles, its direct effect on raising HDL levels is less significant compared to the impact of increased physical activity. Decreased water intake does not have a relevant effect on HDL cholesterol and can lead to dehydration and associated health issues. Similarly, reduced protein consumption is not typically linked to improvements in HDL levels, and it is essential to maintain a balanced diet that includes adequate protein for overall health. Therefore, the focus on increased physical activity as the most effective strategy is supported by extensive research demonstrating its positive impact on HDL cholesterol levels.