Cranberry Extract

Does cranberry extract work?

Overall Effectiveness Rating for Cranberry Extract

The overall effectiveness rating for cranberry extract is 2.6 out of 3. This rating means there is ample evidence that using cranberry extract will lead to positive results.

Overall Confidence Rating for Cranberry Extract

There are 9 studies in the database on cranberry extract; the confidence rating is 180. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for cranberry extract as a whole. There are also individual ratings for the claims below.

Products Containing Cranberry Extract

Products Containing Cranberry Extract
Hardwire Energy and Focus Formula
White Warped
Full list of all 2 products containing Cranberry Extract.

Individual Claims

The overall ratings above do no necessarily reflect each claim about cranberry extract. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

Immune Health Claims Effectiveness Rating Confidence Rating
prevent urinary tract infections


Title of Study
Consumption of a cranberry juice beverage lowered the number of clinical urinary tract infection episodes in women with a recent history of urinary tract infection
Cranberry juice fails to prevent recurrent urinary tract infection: results from a randomized placebo-controlled trial
Cranberry supplementation in the prevention of non-severe lower urinary tract infections: a pilot study
Does ingestion of cranberry juice reduce symptomatic urinary tract infections in older people in hospital? A double-blind, placebo-controlled trial
Effect of oral cranberry extract (standardized proanthocyanidin-A) in patients with recurrent UTI by pathogenic E. coli: a randomized placebo-controlled clinical research study
Evaluation of cranberry tablets for the prevention of urinary tract infections in spinal cord injured patients with neurogenic bladder
Highly standardized cranberry extract supplementation (Anthocran®) as prophylaxis in young healthy subjects with recurrent urinary tract infections
Recurrent urinary tract infection and urinary Escherichia coli in women ingesting cranberry juice daily: a randomized controlled trial
Supplementation with high titer cranberry extract (Anthocran®) for the prevention of recurrent urinary tract infections in elderly men suffering from moderate prostatic hyperplasia: a pilot study