Watermelon fruit is 91% water, contains 6% sugars, and is low in fat(table). In a 100-gram , (3+1⁄2-ounce) serving, watermelon fruit supplies 125 kilojoules (30 kilocalories) of food energy and low amounts of essential nutrients , Only vitamin C is present in appreciable content at 10% of the Daily Value Watermelon pulp contains carotenoids, including lycopene.