Iceberg lettuce is medium to large in size, and is spherical in shape. The firm head is tightly Packed/ Unpacked with broad, thick, and crisp leaves that are concentrated with a high-water content. The leaves vary in color depending on the particular cultivar, but the outer leaves are typically light green while the inner leaves range from pale yellow to a translucent white. Iceberg lettuce is crunchy and juicy with a mild, sweet flavor. Iceberg lettuce is a good source of potassium, iron, calcium, fiber and vitamins A, C, and K.