How often you juice should depend on how balanced your diet already is. “If you have a healthful, well-rounded diet that consists of whole fruits and vegetables, whole grains, and lean protein, then it does not really matter how often you juice, because you already have a diet rich in vitamins, minerals, and antioxidants," explains Zuckerbrot. "But if you don't have a diet rich in fruits and vegetables, then it is a good idea to supplement with juices on a regular basis. I recommend 1-2 juices per day in order to receive the equivalent of 2-4 servings of fruits and vegetables." Another reason juices should serve as supplements rather than meal replacements: Unlike smoothies, which retain their ingredients' fiber, juices are stripped of all their dietary fiber.
While juicing is a fast and efficient way to squeeze multiple servings of vegetables into one easy-to-consume concoction, you're not always going to have time to prep your produce, run it through a juicer, and wash the contraption afterward. If you're in a hurry, let somebody else do the work. Try the freshly squeezed Kale, Apple, Pineapple, and Chia Seeds juice blend at Jamba Juice.