Our juice has no fiber, this makes it easily assimilated by your body and brought into your blood and lymph system. This way, your cells are supplied with the micronutrients they need to perform a dizzying array of bodily functions. This includes the natural sugars in fruits and vegetables. That’s why we add the greens! Greens have a low GI and contain very few carbohydrates. This means they will not cause a sudden spike in your blood glucose. Keep in mind that juicing facilitates the bioavailability and so is likely to make the GI of vegetable juice higher than the whole vegetable still.