Yes, eating watermelon at night can help you lose weight. In watermelon, although active acid can convert ammonia into urea, it only plays an antioxidant role. What really plays a role in losing weight is tannic acid. When we eat too much carbohydrate, it is not the energy to maintain your daily activities, but becomes neutral fat. Through the intake of tannic acid, neutral fat can be quickly decomposed and burned to achieve slimming effect. Hope to adopt