If hunger is making it hard for you to lose weight, you might want to consider filling your diet with more low-energy-dense foods like mini seedless watermelons.Most of the calories in the mini seedless watermelon come from its carbohydrate content. A 1-cup serving contains 12 grams of carbs. If you follow a low-glycemic diet, you may be avoiding watermelon because it has a high glycemic index, which means its carb content raises blood sugar quickly. However, you might want to reconsider, given that watermelon has a low glycemic load, which means that it has a relatively low amount of carbohydrates compared to its serving size, and very little impact on your blood sugar overall. According to the University of Sydney, the glycemic load is a better tool for you to use when trying to manage your blood sugar.