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.
The glycemic index of watermelon is between 72 and 80. Values above 55 are considered high. However, watermelon has a low glycemic load, which according to Walter Willett, M.D., is a better measure of a foodâs effect on blood sugar. This is due to the high amount of water in watermelon. Indeed, the fruit is over 90 percent water, and since water is calorie free but filling, you are likely to become satisfied from a meal containing watermelon before you ingest too many calories or too much sugar to pose health risks.