Lime is rich in vitamin C and antioxidants, especially flavonoids and can be easily added to the diet, either in form of salad dressings or by squeezing a few drops in drinking water. Thanks to its antioxidant and vitamin C levels, lime is good for skin health and promotes collagen production. Due to high acidity, it can improve digestion and help with constipation treatment. Another benefit of citric acid is helping metabolism and weight management and like other citrus fruits, lime can reduce risk of kidney stones. Drinking warm water with lime juice can help relieve reflux symptoms.