There are no obvious contraindications to eating romaine lettuce leaves, or contraindications to consumption. In general, allergy to lettuce leaves, diarrhea people are generally not recommended to eat. Lettuce leaves are also one of the edible vegetables, generally produced in Hainan, Taiwan and other regions, the nutritional value of its lettuce leaves is significantly higher than lettuce stems. Lettuce leaves contain protein 1.4g, fat 0.2g, carbohydrates 3.6g, niacin 0.4g, phosphorus 26mg, if their own body is more sensitive, easy to green vegetables allergic phenomenon, should not eat lettuce leaves. In addition, lettuce leaves contain dietary fiber, if in the diarrhea period, it is not recommended to eat lettuce leaves, so as not to lead to further aggravation of diarrhea symptoms. For lettuce leaves, you can choose to stir-fry, boil and other cooking methods. In daily life, it is recommended to choose fresh and clean lettuce leaves to consume, if consumed, there are related symptoms, it is recommended to consult a doctor in a timely manner.