Stop or reduce regular aerobic exercise

Reduce intake of unsaturated fats from olive oil, nuts, seeds, avocados, and fatty fish

Increase intake of refined carbohydrates and added sugars

Avoid smoking cessation if you currently smoke

Limit alcohol intake if it is currently moderate

Address very low body weight if present

Review medications with a healthcare professional if HDL is unusually high or abnormal

Treat underlying medical conditions that may affect cholesterol levels

Follow a clinician’s guidance before making any major diet or lifestyle changes