Dietary adjustments to manage high cholesterol levels include emphasizing heart-healthy fats such as omega-3 fatty acids found in fish and nuts. Increasing soluble fiber intake from sources like oats, fruits, and vegetables can help lower cholesterol absorption. It is advisable to reduce saturated fats, commonly found in red meat and full-fat dairy, while eliminating trans fats from processed foods. Incorporating plant sterols or stanols may also aid in cholesterol management. Overall, a balanced diet combined with regular exercise can be effective in maintaining healthy cholesterol levels.