Jul 4, Thing is, there's more to watermelon than just its flavor: It boasts some powerful health benefits, too. At 46 calories per cup, watermelon offers. Oct 3, Watermelon lives up to its name big time. This colorful, refreshing fruit, with its dramatic light-and-dark-green rind and its juicy pinkish-red. May 12, Calorie Counters - Watermelon - So I was at a picnic yesterday, and I had 4 large slices of watermelon. I figured, hey it's fruit, I can have as.