I can eat very large amount of salad. I understand that iceberg has probably the least amount of nutritional value. But I use other vegetables as well. But the main part being the lettuce. I don’t use dressingsreally. Most of the time its minced with garlic and with about a teaspoon and a half of olive oil. So can anyone tell me about calories in lettuce. And how can it be made more healthier, any suggestions would be helpful.