May promote weight loss
Many characteristics of red leaf lettuce make it an ideal weight-loss diet. For example, this vegetable is low in calories but high in fiber, which can help you feel full.
Furthermore, it has high water content. Diets heavy in low-calorie, high-water meals, such as leafy greens like red leaf lettuce, have been shown in studies to greatly improve weight reduction. Although no studies have directly linked red leaf lettuce to weight reduction, eating this low-calorie vegetable as part of a balanced diet is likely to improve your waistline.