Final answer:
Unsalted butter naturally contains dietary cholesterol, which is commonly found in animal products and not in plant-based oils or nuts.
Step-by-step explanation:
The food that naturally contains dietary cholesterol is unsalted butter. Dietary cholesterol and saturated fats are primarily found in animal products, such as meats, dairy, and eggs. Plant-based oils like corn oil and nuts such as cashews do not contain cholesterol, as they are sources of unsaturated fats.