Recent research published in Nutrients indicates that juice cleanses may adversely affect both oral and gut health. In a study involving 14 adults over three days, participants were divided into three groups: one consuming only juice, another combining juice with whole foods, and a third adhering solely to a plant-based diet. The juice-only group experienced significant increases in bacteria associated with inflammation and gut issues, while the plant-based whole food group saw beneficial changes in gut health. These negative effects are likely due to the removal of essential fiber during juicing and the retention of high sugar levels.

Fiber plays a crucial role in maintaining gut health by supporting beneficial bacteria and aiding digestion. When fruits and vegetables are juiced, the fiber is removed, leading to a higher concentration of sugars and a lack of fiber, which can disrupt the balance of the gut microbiome.

Experts recommend blending fruits and vegetables into smoothies or incorporating juice as part of a balanced diet rather than relying solely on juicing. This approach ensures the retention of fiber and helps maintain a healthy balance of gut bacteria.