Cranberry confirmed as natural remedy for UTIs

Embargoed until: Publicly released:
Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts.

Meta-analysis: This type of study involves using statistics to combine the data from multiple previous studies to give an overall result. The reliability of a meta-analysis depends on both the quality and similarity of the individual studies being grouped together.

People: This is a study based on research using people.

People who drink cranberry juice are 54 percent less likely to develop urinary tract infections (UTIs), according to a study led by researchers at Bond University. It has long been suspected that cranberries contain compounds that help prevent bacteria from adhering to the walls of the urinary tract, reducing the risk of infection. However the effectiveness of cranberry juice has been confirmed by the network meta-analysis that amalgamated the results of 20 studies involving 3091 participants worldwide.

Journal/conference: European Urology Focus

Research: Paper

Organisation/s: Bond University, University of Oxford, University of Helsinki

Funder: This meta-analysis received no funding. However, the analysis highlights that three of the studies it included were funded by Ocean Spray Cranberries Inc (Lakeville-Middleboro, Massachusetts) [27, 28, 29]; and two studies used cranberry interventions provided by pharmaceutical companies [23, 24].

Media release

From: Bond University

People who drink cranberry juice are 54 percent less likely to develop urinary tract infections (UTIs), according to a study led by researchers at Bond University.

It has long been suspected that cranberries contain compounds that help prevent bacteria from adhering to the walls of the urinary tract, reducing the risk of infection.

However the effectiveness of cranberry juice has been confirmed by the network meta-analysis that amalgamated the results of 20 studies involving 3091 participants worldwide.

Lead researcher Dr Christian Moro said the findings could help reduce the use of antibiotics to treat UTIs.

“More than half of women experience UTIs and antibiotics are a go-to treatment prescribed by doctors,” said Dr Moro, Associate Professor of Biomedical Sciences and Medicine.

“With antibiotic resistance increasing, it is vital to identify effective non-drug interventions.

“Cranberry juice is an effective and easy intervention that should be considered for the management of UTIs.”

The study, involving researchers from the University of Oxford and University of Helsinki, also found cranberry juice reduced the need for antibiotics by 59 percent, and significantly reduced the symptoms of those with a current UTI.

Just drinking more water or taking cranberry tablets was also beneficial, although not to the extent of combining cranberry with fluid, such as in juice.

About 50 percent of women and 20 percent of men experience a UTI in their lifetime.

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