It’s the volume or weight of food that fills us up. So, if it takes a pound of food to feel satisfied, you can gobble a pound of French fries for a zillion calories or a pound of carrots for 50 calories. The best way to boost volume is to eat foods that are rich in water and fiber. Studies show that when people eat a food rich in water and fiber, such as watermelon, before a meal, they consume up to almost 200 calories less at the following meal and still feel full and satisfied. Do that every day and you could lose up to 2 pounds a month! Besides, fruits like watermelon provides a big nutritional punch, packing in vitamins, such as vitamins A and C, minerals such as potassium, and heart-healthy phytonutrients, such as lycopene, citrulline, and arginine. Not bad for a deliciously sweet treat!