4. Watermelon smoothie
Watermelon is low cal food and contains more than 80% of water. You can prepare watermelon smoothie in different varieties. Learn know how to prepare regular watermelon smoothie, take 3 cups of watermelon pieces, 1 cup of low fat milk and ice cubes. First blend your watermelon pieces for 2 minutes and then add 1 cup of low fat milk and ice cubes in a blender and blend another 2 minutes. Now your regular watermelon smoothie is ready.