Watermelons are our best friend during summer for the obvious reason- it's the juiciest, soft, and sweet fruit that minimizes our thirst and hunger at the same time. But watermelon can do more than just refresh you on a hot summer day. This versatile fruit will help you get a dose of vitamins, antioxidants, and fiber. Watermelon has a good source of vitamin C which is responsible for reducing the effects of asthma. Watermelon has a rich source of potassium that can regulate nerve function. So all you need to do is to consume just one cup of watermelon every day and this will do you good.