The time it takes to see a decrease in cholesterol levels when following a low cholesterol meal plan can vary depending on individual factors such as starting cholesterol levels, genetics, overall health, and adherence to a healthy diet plan. In general, noticeable improvements may occur within a few weeks to a few months. However, significant changes in cholesterol levels may take several months to a year. Consistency with the low cholesterol diet, regular exercise, and other lifestyle modifications play crucial roles in achieving and maintaining improved cholesterol levels. It is essential to consult with a healthcare professional to monitor progress and adjust the plan as needed.