Dietary cholesterol is a type of fat found in animal-based foods, such as eggs, meat, and dairy products. It is different from the cholesterol produced by the body, which is essential for various functions, including hormone production and cell membrane formation. For many years, high dietary cholesterol intake was linked to increased blood cholesterol levels and heart disease. However, recent research suggests that for most people, dietary cholesterol has a smaller impact on blood cholesterol than previously thought, making it less of a concern in a balanced diet.