Phytosterols are plant-derived compounds that resemble cholesterol in structure. They are found in various foods, including nuts, seeds, whole grains, and vegetable oils. Phytosterols can help lower cholesterol levels by blocking the absorption of dietary cholesterol in the intestines, which may contribute to heart health. In addition to their cholesterol-lowering effects, phytosterols are often added to functional foods and dietary supplements. The consumption of phytosterols is generally considered safe and beneficial, but it is important to maintain a balanced diet and consult with a healthcare professional for personalized advice regarding cholesterol management and overall health.