Iceberg lettuce is a popular type of lettuce worldwide. It has white and transparent leaves and is very suitable for making salads and sandwiches due to its cool and sour taste. Iceberg lettuce is a good source of water and fiber. It also contains vitamins A and K. One cup of shredded iceberg lettuce contains only 10 calories, 2 grams of carbohydrates, 1 gram of fiber, and 1 gram of sugar. Despite its reputation for being a complete zero on the nutritional scale, iceberg lettuce provides significant amounts of vitamins A and K. It also has small amounts of many other healthy nutrients. Although it’s low in fiber, it has high water content, making it a refreshing choice during hot weather.