Watermelon is a low-calorie fruit that provides vitamin C, potassium, copper, and citrulline. It may help lower blood pressure, improve insulin sensitivity, and reduce muscle soreness after exercise. Around 92% of a watermelon ’s weight is water, only 8% consists of nutrients. One serving size of watermelon provides 20g of net carbs. It is very low in fiber. There are 46 calories in 1 cup of diced Watermelon. Get full nutrition facts and other common serving sizes of Watermelon including 1 oz and 100 g. Watermelon, comprising 90% water, is an excellent choice for weight loss due to its low-calorie content—just 30 calories per 100 grams or about 46 calories per cup.
