This may shock most people who are on the SAD (Standard American Diet), but yes, 1/2 a watermelon that is 15″ long x 7-1/2” diameter is 678 calories for example and this is a snack on the latest meal plan on RawFoodMealPlanner.com. Eating for health and weight loss is not about calories, it is about nutrient density. Not all calories are the same. For example:
1/2 a watermelon that is 15″ long x 7-1/2” diameter is 678 calories (very hydrating and in season. You can find this organic in Chicago right now)
3 lbs of kale is 667 calories (this would be difficult to consume this much fiber)
1/2 a lb of mozzarella cheese is 680 calories (cheese creates mucus in the body and is high in fat and cholesterol)
1/2 a lb of steak is 605 calories (meat also creates mucus in the body and is high in fat and cholesterol)
You need calories to provide energy to your day and the best way to get it is from fruit. You do not have to eat all of the snack at once if the fiber is too much for you to handle. You can split it up. If your caloric needs for the day are different, feel free to alter it so it fits you. Some of my clients need more calories than the free plans provide because they train and do calisthenics or are male and are doing workouts where they need to feed their muscles more calories. Caloric needs vary based on your goals, height, age, gender, and physical activity.