Whey protein, a form of protein that is manufactured from milk, is an excellent source of protein for people of all ages.hen whey protein is manufactured, the first step is to change milk into curds and whey. Once that happens, the whey is separated from the curds, after which it is processed into whey protein concentrate, whey protein isolate or hydrolyzed whey protein.
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 interior, is actually over 91 percent water, which makes it super low in calories: 1 cup of diced watermelon contains a mere 46 calories. Watermelon has almost no fat or protein. Most of the fruit's 46 calories come from carbs. At 11.63 grams per cup, primarily from natural sugars, carbs give watermelon its sweet taste.
Calories in Watermelon. The other day someone asked in the comments how many calories and grams of sugar are in a serving of watermelon. Off the top of my head I knew it was about 50 calories per cup, but wasnât sure about the sugar. For reference, 1 cup of apple has 57 calories and 11.3 grams of sugar.