Background
Cranberry juice and cranberry extracts have shown benefit in preventing and treating urinary tract
infections in several double-blind studies. New data indicates that it may also be of benefit in men
with chronic non-bacterial prostatitis.
Chronic Non-Bacterial Prostatitis
Prostatitis is a condition that occurs when the prostate becomes inflamed or swollen. It is considered
a chronic condition when the symptoms last for several weeks. Chronic non-bacterial prostatitis most
often is the result of damage or inflammation to the connective tissue barrier of the prostate inner
lining that prevents potentially harmful materials in urine from breaking through to deeper tissues.
Symptoms consist of:
• voiding issues including weak or intermittent urinary stream, straining, hesitancy, terminal
dribbling and incomplete emptying
• storage issues including urgency, frequency, urgency incontinence and nocturia
New Data
Forty-two men with chronic non-bacterial prostatitis received either 1500 mg of dried powdered
cranberries per day for 6 months or no cranberry treatment. At the end of the study, the cranberry
group experienced significant improvements in International Prostate Symptom Score (IPSS ), quality
of life, and urine flow and other voiding parameters, but the control group did not. The mean IPSS
declined by 4.48 points in the cranberry group compared with an increase of 1.43 in the control group.

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