Can juice cleanses negatively affect the gut microbiome like a study showed?

Yes, studies suggest that short-term juice cleanses can negatively impact the gut microbiome by increasing inflammatory bacteria due to high sugar and low fiber.

Why do nutritionists warn against juice diets for gut health?

Nutritionists warn against juice diets because they lack essential fiber, which is vital for feeding beneficial gut bacteria and maintaining gut integrity.

Are juice cleanses bad for your blood sugar and inflammation?

Yes, juice cleanses can cause blood sugar spikes and crashes and are linked to increased bodily inflammation, a risk factor for chronic diseases.

Home / Health / Juice Cleanses Harm Gut, Boost Inflammation

Juice Cleanses Harm Gut, Boost Inflammation

13 Dec, 2025

•

Summary

Juice cleanses may disrupt the gut microbiome and increase inflammation.
Short-term juice diets can negatively impact gut bacteria diversity.
Lack of fiber in juice diets fuels harmful bacteria and inflammation.

Juice Cleanses Harm Gut, Boost Inflammation

Juice cleanses, long touted for "detoxing" and promoting weight loss, are now under scrutiny for potential negative impacts on gut health. Emerging research suggests that even brief adherence to juice-only diets can significantly alter the gut microbiome, fostering an increase in inflammatory bacteria. This disruption is linked to the high sugar and critically low fiber content inherent in most juice-based regimens.

The consequences of this dietary approach extend beyond the gut. Experts warn that the absence of fiber, crucial for feeding beneficial bacteria and maintaining digestive regularity, can lead to an imbalance favoring detrimental microbes. Furthermore, the rapid sugar intake from juices can cause blood sugar spikes and crashes, potentially increasing the risk of insulin resistance and type 2 diabetes. Bodily inflammation, a known risk factor for chronic diseases, is also a significant concern.