A staple food is a basic food item that is regularly consumed and forms a significant part of a person's diet. These foods are typically inexpensive, widely available, and provide a substantial source of energy and nutrients. Common examples of staple foods include rice, wheat, corn, and potatoes. Staple foods vary by region and culture, reflecting local agricultural practices and dietary preferences. In many countries, these foods are often used as the foundation for meals, accompanied by other ingredients to create balanced dishes. For instance, in Asia, rice is a staple, while in Europe, bread often serves this role.