Iceberg lettuce is a type of crisp, green leafy vegetable known for its round shape and crunchy texture. It is commonly used in salads, sandwiches, and wraps due to its mild flavor and refreshing crunch. This lettuce variety is characterized by its tightly packed leaves, which form a dense head. Originally cultivated in California, iceberg lettuce is now grown in many regions around the world. It is low in calories and provides some vitamins and minerals, making it a popular choice for healthy eating. However, it has a lower nutritional value compared to other leafy greens like spinach or kale.