Lemon contains vitamin C and antioxidants that promote good digestion. Lemon water has diuretic properties, detoxifying the body and thereby losing fat. Lemonade also promotes hydration and increases metabolism and a sense of fullness, promoting weight loss. Although there is no solid evidence proving lemonade is better than regular water. Still, it can be a great alternative to high-calorie beverages in terms of taste and calorie count.