Iceberg lettuce is a round, leafy vegetable with crispy, light green leaves, and a mild flavour. Iceberg lettuces have high water content, are low in calories and sodium, and have zero cholesterol. It is a good source of fibre, vitamins C and A, and minerals such as potassium and calcium. These aid weight loss, prevent "heart disease". Helps develop "immunity" and aids healthy skin. Its high water content aids "constipation". Lettuce is consumed raw and is used in salads, sandwiches, burgers and a critical ingredient of "low-carb" diets.