Juicing and juice fasts have immense benefits . However , there are disadvantages or cons

1. It might not be very good for people with KIDNEY DYSFUNCTIONS if we are juicing vegetables that are high in OXALATES. Oxalates are natural compounds in some vegetables ,fruits , nuts and grains . They are highest in green leafy vegetables. Oxalates can bind with the mineral Calcium in kidneys to form calcium oxalate KIDNEY STONES . So people who are prone to kidney stones should be moderate in juicing such vegetables etc rich in them .
2. For people who juice fruits especially sweet ones like watermelon, pineapple there’s the tendency for sugar spikes which can lead to insulin resistance. It’s even more problematic for diabetics , people with pre-diabetes and even PCOS . Also this sugar in fruits is fructose and too much can tax the liver and also cause fatty liver disease . I prefer to juice more vegetables than fruits .
3. Loss of insoluble fiber . There are 2 types of fiber : soluble and insoluble. We lose the insoluble fiber during juicing . The fiber can be added to smoothies or used to create vegetable snacks like crackers.
4. In juicing is there is a need for very large quantity of material to get enough juice especially if juicing fruit and vegetables that are low in water content .
5. Cleaning of juicing equipment sure takes a while when compared to smoothie makers . Juicers definitely don’t look forward to cleaning the juicer as it can be tedious but must be thoroughly done to get rid of germs
6. Juicing sure takes longer than blending or smoothie making especially if it’s a slow juicer .Slow juicers sure takes longer when compared to other types .
7. When juicing , especially during juice fasts ,some juicers may end up not consuming enough calories if not taking enough during juice fasts . This may lead to weakness , dizziness and fatigue . So drinking many cups are needed during juice cleansing or fasts