The most commonly available variety of lettuce, iceberg is favored for its sweet taste and crispness. Select good quality iceberg heads with light green color and moderate firmness. Avoid lettuce that appears wilted or discolored.
While iceberg's nutritional value is less than other leaf lettuces, its use as a healthy low calorie alternative to bread is significant for anyone following a low carbohydrate or gluten free diet. Try substituting bread with lettuce leaves on your next burger or sandwich.