To reduce cholesterol quickly in one week, focus on the following:

1. Diet: Eat more soluble fiber-rich foods like oats, beans, lentils, fruits, and vegetables.
2. Healthy Fats: Include healthy fats from sources like olive oil, avocados, and nuts.
3. Avoid Trans Fats: Eliminate trans fats found in processed and fried foods.
4. Exercise: Engage in at least 30 minutes of aerobic exercise daily, such as walking or cycling.
5. Hydration: Drink plenty of water.
6. Limit Sugar and Refined Carbs: Reduce intake of sugary foods and refined carbohydrates.