Since fruit juices only contribute to increased calorie count, you can always substitute them with healthier vegetable juices for your liquid diet. They are not only adaptable to multiple combinations but contain no sugar and are incredibly useful for keeping the gut mechanism in shape. 

A blend of celery, your favorite leafy vegetables, cucumbers, tomatoes, and gourds with a handful of berries for the tartness will act as a complete meal loaded with vitamins and minerals.